sqlite: re-validate database state after reading options - #65595

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nodejs-github-bot merged 2 commits into
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TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
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sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

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  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

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nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
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sqlite: option getters run user JS mid-call, then stale state is used

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@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

sqlite: re-validate database state after reading options - #65595

Merged
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnham

@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

@nodejs-github-bot

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Review requested:

  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
@codecov

codecovBot commented Aug 27, 2026

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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

@trivikr

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
@TrevorBurnham

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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

@nodejs-github-bot
nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
84 checks passed
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Landed in c8e5c96

@nodejs-github-botnodejs-github-bot removed commit-queue PRs queued for automated landing through the Commit Queue. lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. labels Sep 3, 2026
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sqlite: option getters run user JS mid-call, then stale state is used

4 participants

@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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sqlite: re-validate database state after reading options - #65595

Merged
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

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Review requested:

  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

@nodejs-github-bot
nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
84 checks passed
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Landed in c8e5c96

@nodejs-github-botnodejs-github-bot removed commit-queue PRs queued for automated landing through the Commit Queue. lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. labels Sep 3, 2026
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Successfully merging this pull request may close these issues.

sqlite: option getters run user JS mid-call, then stale state is used

4 participants

@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

sqlite: re-validate database state after reading options - #65595

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nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

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  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

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nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
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sqlite: option getters run user JS mid-call, then stale state is used

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@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

sqlite: re-validate database state after reading options - #65595

Merged
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

@nodejs-github-bot

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Review requested:

  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
@codecov

codecovBot commented Aug 27, 2026

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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

@trivikr

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
@TrevorBurnham

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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

@nodejs-github-bot
nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
84 checks passed
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Landed in c8e5c96

@nodejs-github-botnodejs-github-bot removed commit-queue PRs queued for automated landing through the Commit Queue. lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. labels Sep 3, 2026
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Labels

author readyPRs with CI started, the required approvals, and no outstanding review comments.c++Issues and PRs that require attention from people who are familiar with C++.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.sqliteIssues and PRs related to the SQLite subsystem.

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Successfully merging this pull request may close these issues.

sqlite: option getters run user JS mid-call, then stale state is used

4 participants

@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

sqlite: re-validate database state after reading options - #65595

Merged
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

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Review requested:

  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
@codecov

codecovBot commented Aug 27, 2026

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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

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nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
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sqlite: option getters run user JS mid-call, then stale state is used

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@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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sqlite: re-validate database state after reading options - #65595

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nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

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  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

@nodejs-github-bot
nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
84 checks passed
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Landed in c8e5c96

@nodejs-github-botnodejs-github-bot removed commit-queue PRs queued for automated landing through the Commit Queue. lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. labels Sep 3, 2026
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author readyPRs with CI started, the required approvals, and no outstanding review comments.c++Issues and PRs that require attention from people who are familiar with C++.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.sqliteIssues and PRs related to the SQLite subsystem.

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Successfully merging this pull request may close these issues.

sqlite: option getters run user JS mid-call, then stale state is used

4 participants

@TrevorBurnham@nodejs-github-bot@trivikr@araujogui
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

sqlite: re-validate database state after reading options - #65595

Merged
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou
Sep 3, 2026
Merged

sqlite: re-validate database state after reading options#65595
nodejs-github-bot merged 2 commits into
nodejs:mainfrom
TrevorBurnham:sqlite-option-getter-toctou

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@TrevorBurnham

@TrevorBurnhamTrevorBurnham commented Aug 27, 2026

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Fixes#65586

Several DatabaseSync methods check IsOpen() and then read their options bag with Object::Get(). A user-supplied property getter runs arbitrary JavaScript at that point, so a getter that calls close() invalidates the check before the resulting sqlite3* is used.

function(), aggregate(), deserialize(), applyChangeset(), backup(). All but prepare() all segfault in this scenario. prepare() reports a spurious ERR_SQLITE_ERROR: out of memory instead, because sqlite3_prepare_v3() null-checks its argument.

The fix here is to re-check IsOpen() after option parsing, immediately before the SQLite call. The existing early check is kept: moving it would make attacker-controlled getters run on calls that are already doomed to throw, which is the wrong direction for a hardening change, and would reorder existing error precedence.

createSession() already parsed its options before validating. It gains the matching early check here for consistency.

Two related fixes in the same code:

  • deserialize() latched input->ByteLength() before reading options.dbName. A getter that shrinks the backing ArrayBuffer leaves the latched length too large, CopyContents() copies only what remains, its return value is discarded, and the uninitialized remainder is handed to SQLite, where serialize() returns it to JavaScript. The CopyContents() result is now checked.
  • function() and aggregate() cast the callback's length with As<Int32>() and no IsInt32() guard. length is configurable, so 'abc', {}, NaN and 1.5 all reached the cast and registered a silently wrong arity. Now validated, matching the five sites in this file that already do.

Verification

New test/parallel/test-sqlite-options-getter-reentry.js covers all seven sites, buffer shrink and detach, and the length type checks.

Compatibility note

Rejecting a non-integer fn.length with ERR_INVALID_ARG_TYPE is a behavior change, though it only affects functions whose length has been redefined.

@nodejs-github-bot

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Review requested:

  • @nodejs/sqlite

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. sqlite Issues and PRs related to the SQLite subsystem. labels Aug 27, 2026
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 39de389 to d3e10a8CompareAugust 27, 2026 15:58
@TrevorBurnham
TrevorBurnham marked this pull request as ready for review August 27, 2026 16:56
@codecov

codecovBot commented Aug 27, 2026

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Codecov Report

❌ Patch coverage is 91.17647% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (f9ab994) to head (8a028a0).
⚠️ Report is 6 commits behind head on main.

Files with missing linesPatch %Lines
src/node_sqlite.cc91.17%1 Missing and 2 partials ⚠️
Additional details and impacted files
@@ Coverage Diff @@## main #65595 +/- ##
==========================================
- Coverage 90.07% 90.07% -0.01% 
==========================================
Files 754 754 Lines 256395 256422 +27 Branches 48494 48507 +13 ==========================================
+ Hits 230947 230966 +19 - Misses 16563 16568 +5 - Partials 8885 8888 +3 
Files with missing linesCoverage Δ
src/node_sqlite.cc82.18% <91.17%> (+0.19%)⬆️

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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@TrevorBurnham Can you please rebase to resolve conflicts with src/node_sqlite.cc?

prepare(), function(), aggregate(), deserialize(), applyChangeset() and
backup() validated the connection, then read their options bag with
Object::Get(). A property getter runs arbitrary JavaScript at that
point, so a getter calling close() invalidates what was just checked.
Five of the six then passed a null sqlite3* to SQLite and crashed;
prepare() reported a spurious "out of memory".
Re-check IsOpen() after option parsing, immediately before the SQLite
call, keeping the early check so invalid calls still fail before any
user code runs. IsOpen() is the only condition a getter can change:
authorizer and callback depths are RAII-managed. createSession()
already parsed options first, so it only gains the early check.
deserialize() also latched the buffer length before reading
options.dbName. A getter that shrank the backing store left the length
too large; CopyContents() then handed the uninitialized remainder to
SQLite, from where serialize() returned it to JavaScript. Check the
CopyContents() result instead of discarding it.
function() and aggregate() cast the callback's length property with
As<Int32>() and no IsInt32() guard. length is configurable, so any type
reached the cast and produced a silently wrong arity.
Fixes: nodejs#65586
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
Add the skipIfSQLiteMissing() guard. Builds configured with shared
libraries omit node:sqlite, so requiring it unconditionally failed the
x86_64-darwin and aarch64-darwin shared-library CI jobs.
Signed-off-by: Trevor Burnham <trevorburnham@gmail.com>
@TrevorBurnham
TrevorBurnhamforce-pushed the sqlite-option-getter-toctou branch from 8f7d36d to 8a028a0CompareSeptember 1, 2026 12:09
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@trivikr Rebased.

@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
@trivikr
trivikr requested a review from QardSeptember 1, 2026 18:49
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Sep 1, 2026
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@trivikrtrivikr added author ready PRs with CI started, the required approvals, and no outstanding review comments. commit-queue PRs queued for automated landing through the Commit Queue. commit-queue-squash PRs the Commit Queue should land as one squashed commit. labels Sep 2, 2026
@nodejs-github-botnodejs-github-bot added the lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. label Sep 2, 2026
});

// fn.length is configurable, so it must be validated rather than cast blindly.
suite('non-integer callback length', () => {

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These are not a reentry call so I think these aren't in the correct test file.

@nodejs-github-bot
nodejs-github-bot merged commit c8e5c96 into nodejs:mainSep 3, 2026
84 checks passed
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Landed in c8e5c96

@nodejs-github-botnodejs-github-bot removed commit-queue PRs queued for automated landing through the Commit Queue. lacks-second-approval Commit Queue PRs awaiting a second collaborator approval or completion of the required wait. labels Sep 3, 2026
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Successfully merging this pull request may close these issues.

sqlite: option getters run user JS mid-call, then stale state is used

4 participants

@TrevorBurnham@nodejs-github-bot@trivikr@araujogui