fix: fail closed without vss auth - #665

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fix/fail-closed-unauthenticated-vss
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fix: fail closed without vss auth#665
ovitrif merged 5 commits into
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fix/fail-closed-unauthenticated-vss

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.

Description

Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.

Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.

Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.

Linked Issues/Tasks

Screenshot / Video

N/A

QA Notes

Manual Tests

  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.

Automated Checks

  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.

Made with Cursor

@greptile-apps

greptile-appsBot commented Aug 12, 2026

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Greptile Summary

The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.

  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.

Confidence Score: 5/5

The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.

The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.

Important Files Changed

FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]
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Self-contained PR, no issues found

Comment threadBitkit/Services/LightningService.swift
jvsena42
jvsena42 reviewed Aug 13, 2026
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Comment threadBitkit/Services/VssBackupClient.swift Outdated
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ben-kaufmanforce-pushed the fix/fail-closed-unauthenticated-vss branch from 43a0272 to 4a19901CompareAugust 17, 2026 12:34
@ovitrifovitrif mentioned this pull request Aug 18, 2026
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#673 bumps vss-rust-client-ffi to 0.5.23

@ovitrif
ovitrif self-requested a review August 18, 2026 12:56
ben-kaufmanand others added 5 commits August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed the fix/fail-closed-unauthenticated-vss branch from 638c058 to 8b05ef6CompareAugust 18, 2026 13:03
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.

@ovitrif
ovitrif merged commit 68abec1 into masterAug 18, 2026
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@ovitrif
ovitrif deleted the fix/fail-closed-unauthenticated-vss branch August 18, 2026 18:07
@piotr-iohkpiotr-iohk mentioned this pull request Aug 21, 2026
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@piotr-iohkpiotr-iohk mentioned this pull request Aug 31, 2026
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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fix: fail closed without vss auth - #665
Merged
ovitrif merged 5 commits into
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fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
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@ben-kaufman
@ben-kaufmanben-kaufman
commented
Aug 12, 2026•

edited

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
greptile-appsBot
commented
Aug 12, 2026

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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
jvsena42
reviewed
Aug 13, 2026
View reviewed changes
Comment threadBitkit/Services/VssBackupClient.swift
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Aug 13, 2026
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4a19901CompareAugust 17, 2026 12:34
@ovitrifovitrif
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed
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fix/fail-closed-unauthenticated-vss
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
into
masterAug 18, 2026

11 checks passed

@ovitrif
ovitrif
deleted the

fix/fail-closed-unauthenticated-vss

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August 18, 2026 18:07
@piotr-iohkpiotr-iohk
mentioned this pull request
Aug 21, 2026
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mentioned this pull request
Aug 31, 2026
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, '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");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix: fail closed without vss auth - #665
Merged
ovitrif merged 5 commits into
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fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Conversation
@ben-kaufman
@ben-kaufmanben-kaufman
commented
Aug 12, 2026•

edited

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
greptile-appsBot
commented
Aug 12, 2026

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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
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reviewed
Aug 13, 2026
View reviewed changes
Comment threadBitkit/Services/VssBackupClient.swift
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed
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fix/fail-closed-unauthenticated-vss
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8b05ef6CompareAugust 18, 2026 13:03
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
into
masterAug 18, 2026

11 checks passed

@ovitrif
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deleted the

fix/fail-closed-unauthenticated-vss

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@piotr-iohkpiotr-iohk
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 Closed

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(function(){
try {
var __m = "*";
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Skip to content
fix: fail closed without vss auth - #665
Merged
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Conversation
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@ben-kaufmanben-kaufman
commented
Aug 12, 2026•

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
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Comment threadBitkit/Services/VssBackupClient.swift
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
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masterAug 18, 2026

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@piotr-iohkpiotr-iohk
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Aug 31, 2026
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, '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" + '

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fix: fail closed without vss auth - #665
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fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
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@ben-kaufmanben-kaufman
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edited

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
greptile-appsBot
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Aug 12, 2026

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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Reviews (1): Last reviewed commit: "fix: fail closed without vss auth" | Re-trigger Greptile
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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
jvsena42
reviewed
Aug 13, 2026
View reviewed changes
Comment threadBitkit/Services/VssBackupClient.swift
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@ovitrifovitrif
mentioned this pull request
Aug 18, 2026
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
into
masterAug 18, 2026

11 checks passed

@ovitrif
ovitrif
deleted the

fix/fail-closed-unauthenticated-vss

branch
August 18, 2026 18:07
@piotr-iohkpiotr-iohk
mentioned this pull request
Aug 21, 2026
 Closed

@piotr-iohkpiotr-iohk
mentioned this pull request
Aug 31, 2026
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, '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
fix: fail closed without vss auth - #665
Merged
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Conversation
@ben-kaufman
@ben-kaufmanben-kaufman
commented
Aug 12, 2026•

edited

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Contributor
This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
greptile-appsBot
commented
Aug 12, 2026

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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
jvsena42
reviewed
Aug 13, 2026
View reviewed changes
Comment threadBitkit/Services/VssBackupClient.swift
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed
the
fix/fail-closed-unauthenticated-vss
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8b05ef6CompareAugust 18, 2026 13:03
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
into
masterAug 18, 2026

11 checks passed

@ovitrif
ovitrif
deleted the

fix/fail-closed-unauthenticated-vss

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August 18, 2026 18:07
@piotr-iohkpiotr-iohk
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Aug 21, 2026
 Closed

@piotr-iohkpiotr-iohk
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Aug 31, 2026
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, '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('^' + ".*" + '

Skip to content
fix: fail closed without vss auth - #665
Merged
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Aug 18, 2026
Merged
fix: fail closed without vss auth#665
ovitrif merged 5 commits into
masterfrom 
fix/fail-closed-unauthenticated-vss
Conversation
@ben-kaufman
@ben-kaufmanben-kaufman
commented
Aug 12, 2026•

edited

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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
@greptile-apps
greptile-appsBot
commented
Aug 12, 2026

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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Aug 13, 2026
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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
jvsena42
reviewed
Aug 13, 2026
View reviewed changes
Comment threadBitkit/Services/VssBackupClient.swift
Outdated

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#673 bumps vss-rust-client-ffi to 0.5.23
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fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
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docs: clarify vss auth nil path
1073cd5
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fix: retain pending channel migration on setup failure
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
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} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
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fix: fail closed without vss auth - #665
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fix/fail-closed-unauthenticated-vss
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fix: fail closed without vss auth#665
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fix/fail-closed-unauthenticated-vss
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This PR fails closed when LNURL-auth is missing so wallet backups cannot fall back to unauthenticated VSS.
Description
Removes the unauthenticated VSS client fallback. If LNURL-auth is not configured, backup setup and Lightning node build now error instead of using a public encryption key or fixed-header VSS.
Env currently always sets an LNURL-auth URL, so this is a footgun fix rather than a user-visible change on production configs.
Related: synonymdev/audit#55 (BITKIT-SEC-003). Library-side rejection is in synonymdev/vss-rust-client-ffi.
Linked Issues/Tasks
Screenshot / Video
N/A
QA Notes
Manual Tests
  • 1. Fresh wallet → backup/Lightning start with current Env LNURL-auth URL: setup still succeeds.
  • 2.regression: empty LNURL-auth URL → VSS setup and node build fail instead of using unauthenticated VSS.
Automated Checks
  • Added ChannelMigrationPersistenceTests coverage for retaining migration data on setup failure, clearing it after success, and preserving a newer pending migration.
  • SwiftFormat and translation validation pass locally.
Made with Cursor
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Greptile Summary
The PR removes unauthenticated VSS fallback behavior so backup and Lightning-node initialization fail closed when LNURL-auth is unavailable.
  • Requires LNURL-auth parameters when initializing the backup VSS client.
  • Requires a non-empty LNURL-auth URL before building the Lightning node and during stale-monitor recovery.
  • Adds a shared vssAuthRequired service error and documents the security change.
Confidence Score: 5/5
The PR appears safe to merge and consistently enforces fail-closed VSS authentication across the changed setup paths.
The backup client and Lightning builder now reject missing LNURL-auth rather than selecting unauthenticated construction, while preserving authenticated setup and stale-monitor recovery behavior.
Important Files Changed
FilenameOverview
Bitkit/Services/LightningService.swiftRemoves fixed-header VSS node construction and rejects empty LNURL-auth configuration before either normal or stale-monitor-recovery builds.
Bitkit/Services/VssBackupClient.swiftRemoves unauthenticated backup-client fallback and consistently reports the shared authentication-required error.
Bitkit/Utilities/Errors.swiftAdds localized handling for the new vssAuthRequired service error.
changelog.d/next/fail-closed.security.mdAccurately records that wallet backups no longer fall back to unauthenticated VSS.
Flowchart
%%{init: {'theme': 'neutral'}}%%
flowchart TD
A[VSS or Lightning setup] --> B{LNURL-auth configured?}
B -- No --> C[Throw vssAuthRequired]
B -- Yes --> D[Build authenticated VSS client or node]
D --> E{Build succeeds?}
E -- Yes --> F[Setup complete]
E -- DangerousValue --> G[Enable stale monitor recovery]
G --> H[Retry authenticated node build]
E -- Other error --> I[Propagate setup failure]

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Self-contained PR, no issues found
Comment threadBitkit/Services/LightningService.swift
jvsena42
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Comment threadBitkit/Services/VssBackupClient.swift
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#673 bumps vss-rust-client-ffi to 0.5.23
@ovitrif
ovitrif
self-requested a review
August 18, 2026 12:56
ben-kaufmanand others
added 5 commits
August 18, 2026 15:03
@ben-kaufman@cursoragent@ovitrif
fix: fail closed without vss auth
ad73b63
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
chore: rename changelog fragment
4b65e31
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
fix: treat blank vss auth urls as missing
0ba9e68
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@cursoragent@ovitrif
docs: clarify vss auth nil path
1073cd5
Co-authored-by: Cursor <cursoragent@cursor.com>
@ben-kaufman@ovitrif
fix: retain pending channel migration on setup failure
8b05ef6
@ovitrif
ovitrifforce-pushed
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Fail-closed LNURL-auth is enforced on backup and Lightning setup, and pending channel-migration data is retained if setup fails.
@ovitrif
ovitrif
merged commit 68abec1
into
masterAug 18, 2026

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@ovitrif
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@piotr-iohkpiotr-iohk
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Aug 21, 2026
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@piotr-iohkpiotr-iohk
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Aug 31, 2026
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