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GeezerVison is showing github.com — [3.15] gh-160898: Reject null bytes in `socket.getaddrinfo()` host and port (GH-160899) by sethmlarson · Pull Request #160925 · python/cpython

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@sethmlarson

@sethmlarson sethmlarson commented Oct 29, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit 131a3a6)

  • Issue: Null bytes are accepted within socket.getaddrinfo() #160898

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@sethmlarson @StanFromIreland
[3.15] pythongh-160898: Reject null bytes in socket.getaddrinfo() h…
ee60d5d 
…ost and port (pythonGH-160899)

(cherry picked from commit 131a3a6)

Co-authored-by: Seth Larson <[email protected]>
Co-authored-by: Stan Ulbrych <[email protected]>
@bedevere-app bedevere-app Bot added the awaiting core review label Oct 29, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Oct 29, 2026
Null bytes are accepted within socket.getaddrinfo() #160898
Open
@bedevere-app bedevere-app Bot added topic-socket Related to the socket, socketserver and selectors modules type-security A security issue labels Oct 29, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Oct 29, 2026
gh-160898: Reject null bytes in socket.getaddrinfo() host and port #160899
Merged
@read-the-docs-community

read-the-docs-community Bot commented Oct 29, 2026

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Documentation build overview

📚 cpython-previews | 🛠️ Build #35509039 | 📁 Comparing ee60d5d against main (386d9d0)

  🔍 Preview build  

160 files changed · + 1 added · ± 154 modified · - 5 deleted

+ Added

  • library/asyncio-policy.html

± Modified

  • index.html
  • license.html
  • py-modindex.html
  • builtins/exceptions.html
  • builtins/functions.html
  • builtins/stdtypes.html
  • c-api/bytes.html
  • c-api/capsule.html
  • c-api/complex.html
  • c-api/conversion.html
  • and 144 more...

- Deleted

  • deprecations/pending-removal-in-3.21.html
  • library/tkinter.dialogs.html
  • library/tkinter.fontchooser.html
  • library/tkinter.systray.html
  • whatsnew/3.16.html
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@sethmlarson sethmlarson added the release-blocker label Oct 30, 2026
@github-project-automation github-project-automation Bot added this to Release and Deferred blockers 🚫 Oct 30, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Release and Deferred blockers 🚫 Oct 30, 2026
This was referenced Nov 5, 2026
ci(grype): ignore CPython socket.getaddrinfo CVE-2026-116566 until a fix ships jkreileder/cf-ips-to-hcloud-fw#1599
Merged
Scanner suppressions: remove each when its condition holds jkreileder/cf-ips-to-hcloud-fw#1584
Open
jkreileder added a commit to jkreileder/cf-ips-to-hcloud-fw that referenced this pull request Nov 5, 2026
@jkreileder
ci(grype): ignore CPython socket.getaddrinfo CVE-2026-116566 until a …
4e0a2ed 
…fix ships (#1599)

Grype matches CVE-2026-116566 (null bytes accepted in socket.getaddrinfo()
host and port, medium) against the python 3.15.2 binary in the base image
and lists a fix only in 3.16.0. The fix is merged on main
(python/cpython#160899); the backports to 3.15 (python/cpython#160925) and
older branches are still open, so no 3.15.x release clears it yet.

The rule is pinned to python 3.15.2 so a base-image bump re-checks it.

Refs #1584

Signed-off-by: Jürgen Kreileder <[email protected]>
@hugovk
hugovk merged commit 85736ac into python:3.15 Nov 6, 2026
106 of 108 checks passed

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@github-project-automation github-project-automation Bot moved this from Todo to Done in Release and Deferred blockers 🚫 Nov 6, 2026
@bedevere-app bedevere-app Bot removed the awaiting core review label Nov 6, 2026
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release-blocker topic-socket Related to the socket, socketserver and selectors modules type-security A security issue

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@sethmlarson @hugovk
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