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[3.14] gh-146211: Reject CR/LF in HTTP tunnel request headers (GH-146212) - #148342
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mandree added a commit
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Apr 11, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 which is the same as Security: CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 which is the same as Security: CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 which is the same as Security: CVE-2026-2297 [security] Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 which is the same as Security: 9fdad262-2e0f-11f1-88c7-00a098b42aeb which is the same as Security: CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 which is the same as Security: CVE-2026-3446 Added into PORTREVISION=1: 2 cherry-picks post-3.14.4 HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security: python/cpython#146212 Security: CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333 lang/python314: add FULLLTO and warning
mandree added a commit
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Apr 11, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 which is the same as Security: CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 which is the same as Security: CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 which is the same as Security: CVE-2026-2297 [security] Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 which is the same as Security: 9fdad262-2e0f-11f1-88c7-00a098b42aeb which is the same as Security: CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 which is the same as Security: CVE-2026-3446 Added into PORTREVISION=1: 2 cherry-picks post-3.14.4 HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security: python/cpython#146212 Security: CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333 lang/python314: add FULLLTO and warning (cherry picked from commit b526f87)
freebsd-git pushed a commit
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Apr 12, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html PR: 294324 Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 / CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 / CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 / CVE-2026-2297 Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 / 9fdad262-2e0f-11f1-88c7-00a098b42aeb / CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 / CVE-2026-3446 Additional security related PRs from upstream HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security python/cpython#146212 / CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333
freebsd-git pushed a commit
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Apr 12, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html PR: 294324 Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 / CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 / CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 / CVE-2026-2297 Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 / 9fdad262-2e0f-11f1-88c7-00a098b42aeb / CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 / CVE-2026-3446 Additional security related PRs from upstream HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security python/cpython#146212 / CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333 (cherry picked from commit 955268b)
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octo-sts-6Bot
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Apr 23, 2026
- **CVE-2026-6100** (Critical, CVSS 9.1) — Use-after-free in `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a decompressor instance is re-used after MemoryError. Cherry-pick of commit `6a5f79c8` from the 3.14 branch. - GHSA: GHSA-pg25-7cx5-cvcm - Upstream: python/cpython#148480 - **CVE-2026-1502** (Medium) — CR/LF bytes not rejected in HTTP client proxy tunnel headers. Cherry-pick of commit `b1cf9016` from the 3.14 branch. - GHSA: GHSA-hjxq-7w9q-2jw6 - Upstream: python/cpython#148342 - **CVE-2026-4786** (High) — Incomplete mitigation of CVE-2026-4519; `%action` substitution bypass of dash-prefix check in `webbrowser`. Cherry-pick of commit `d22922c8` from main (3.14 backport PR #148516 is open and mergeable; identical file changes verified). - GHSA: GHSA-cccx-m78h-m3xw - Upstream: python/cpython#148170 Signed-off-by: Brian Carey <brian.carey@chainguard.dev> Export: edefd2a320a9e3d0ed5d7eb99a5b6f5c35bcb7fc
camachat pushed a commit
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Jul 22, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html PR: 294324 Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 / CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 / CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 / CVE-2026-2297 Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 / 9fdad262-2e0f-11f1-88c7-00a098b42aeb / CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 / CVE-2026-3446 Additional security related PRs from upstream HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security python/cpython#146212 / CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333
camachat pushed a commit
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Jul 24, 2026
Add a -flto=full option, which can speed up the port build in terms of wallclock time at the expense of overall more CPU time. Issue a warning that test_ssl will fail from pre-test if DEBUG is enabled. Changelog: https://docs.python.org/release/3.14.4/whatsnew/changelog.html PR: 294324 Which contains these security fixes: pyexpat.c: Unbounded C recursion in conv_content_model causes crash Security: python/cpython#145986 / CVE-2026-4224 Reject control characters in more places in http.cookies.Morsel Security: python/cpython#145599 / CVE-2026-3644 SourcelessFileLoader does not use io.open_code() Security: python/cpython#145506 / CVE-2026-2297 Disallow usage of control characters in status, headers and values for security in Lib/wsgiref/handlers.py Security: python/cpython#144370 Reject leading dashes in webbrowser.open() Security: python/cpython#143930 / 9fdad262-2e0f-11f1-88c7-00a098b42aeb / CVE-2026-4519 Excess Base64 data ignored after padding by default Security: python/cpython#145264 / CVE-2026-3446 Additional security related PRs from upstream HTTP proxy via "CONNECT" tunneling doesn't sanitize CR/LF Obtained from: python/cpython#148342 Security python/cpython#146212 / CVE-2026-1502 configparser.RawConfigParser.{OPTCRE,OPTCRE_NV} regexes vulnerable to quadratic backtracking Obtained from: python/cpython#148287 Security: python/cpython#146333
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(cherry picked from commit 05ed7ce)
Co-authored-by: Seth Larson seth@python.org
Co-authored-by: Illia Volochii illia.volochii@gmail.com