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ALSA-2026:54268 — Important: python3.9 security update

Affected: AlmaLinux:9: python-unversioned-command, AlmaLinux:9: python3, AlmaLinux:9: python3-debug, AlmaLinux:9: python3-devel, AlmaLinux:9: python3-idle, AlmaLinux:9: python3-libs, AlmaLinux:9: python3-test, AlmaLinux:9: python3-tkinter

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es):

* python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory (CVE-2026-11940)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

BELL-CVE-2026-11940

Affected: Alpaquita:23: python3, Alpaquita:25: python3, Alpaquita:stream: python3, BellSoft Hardened Containers:23: python3, BellSoft Hardened Containers:25: python3, BellSoft Hardened Containers:stream: python3

BIT-libpython-2026-11940 — tarfile extraction filter bypass allows escaping the destination directory

Affected: Bitnami: libpython

tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself. The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory. This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.

certfr-2026-avi-0800 — De multiples vulnérabilités ont été découvertes dans CPython. Certaines d'entre elles permettent à un attaquant de prov…

certfr-2026-avi-0800

EUVD-2026-351836

fkie_cve-2026-11940

GHSA-9mc4-rqmq-h467

OESA-2026-2919 — python3 security update

Affected: openEuler:24.03-LTS-SP1: python3

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces. Security Fix(es):

When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.(CVE-2026-11972)

The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() wa…

openSUSE-SU-2026:11285-1 — python310-3.10.20-7.1 on GA media

python310-3.10.20-7.1 on GA media

RHSA-2026:38017 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

cpython: python: Extraction filter bypass for linking outside extraction directory python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

RLSA-2026:54268 — Important: python3.9 security update

Affected: Rocky Linux:9: python3.9

Security Fix(es):

* python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory (CVE-2026-11940)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

SUSE-SU-2026:23159-1 — Security update for python313

Security update for python313

UBUNTU-CVE-2026-11940

Affected: Ubuntu:Pro:14.04:LTS: python2.7, Ubuntu:Pro:14.04:LTS: python3.4, Ubuntu:Pro:14.04:LTS: python3.5, Ubuntu:Pro:16.04:LTS: python2.7, Ubuntu:Pro:16.04:LTS: python3.5, Ubuntu:Pro:18.04:LTS: python2.7, Ubuntu:Pro:18.04:LTS: python3.6, Ubuntu:Pro:18.04:LTS: python3.7, Ubuntu:Pro:18.04:LTS: python3.8, Ubuntu:Pro:20.04:LTS: python3.8 and 14 more

WID-SEC-W-2026-2044 — CPython: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in CPython ausnutzen, um Dateien zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.