Fedora alert FEDORA-2026-952616f3d6 (python3.11)

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[SECURITY] Fedora 43 Update: python3.11-3.11.15-4.fc43
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Tue, 28 Apr 2026 01:00:19 +0000
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<20260428010019.DAA186B6FA@bastion01.rdu3.fedoraproject.org>
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Article
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Fedora Update Notification
FEDORA-2026-952616f3d6
2026-04-28 00:55:52.209227+00:00
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Name        : python3.11
Product     : Fedora 43
Version     : 3.11.15
Release     : 4.fc43
URL         : https://www.python.org/
Summary     : Version 3.11 of the Python interpreter
Description :
Python 3.11 is an accessible, high-level, dynamically typed, interpreted
programming language, designed with an emphasis on code readability.
It includes an extensive standard library, and has a vast ecosystem of
third-party libraries.

The python3.11 package provides the "python3.11" executable: the reference
interpreter for the Python language, version 3.
The majority of its standard library is provided in the python3.11-libs package,
which should be installed automatically along with python3.11.
The remaining parts of the Python standard library are broken out into the
python3.11-tkinter and python3.11-test packages, which may need to be installed
separately.

Documentation for Python is provided in the python3.11-docs package.

Packages containing additional libraries for Python are generally named with
the "python3.11-" prefix.

--------------------------------------------------------------------------------
Update Information:

Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-6100, CVE-2026-2297,
CVE 2026-3644, CVE-2026-4224
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ChangeLog:

* Fri Apr 17 2026 Charalampos Stratakis <cstratak@redhat.com> - 3.11.15-4
- Security fixes for CVE-2026-1502, CVE-2026-4786, CVE-2026-6100, CVE-2026-2297, CVE 2026-3644,
CVE-2026-4224
Resolves: rhbz#2457941, rhbz#2458221, rhbz#2458013, rhbz#2444704, rhbz#2448188, rhbz#2448204
* Sat Apr 11 2026 Miro Hrončok <mhroncok@redhat.com> - 3.11.15-3
- Explicitly build with OpenSSL 3
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #2444704 - CVE-2026-2297 python3.11: CPython: Logging Bypass in Legacy .pyc File
Handling [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2444704
  [ 2 ] Bug #2448188 - CVE-2026-3644 python3.11: Incomplete control character validation in
http.cookies [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2448188
  [ 3 ] Bug #2448204 - CVE-2026-4224 python3.11: Stack overflow parsing XML with deeply nested DTD
content models [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2448204
  [ 4 ] Bug #2457941 - CVE-2026-1502 python3.11: Python: HTTP header injection via CR/LF in proxy
tunnel headers [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2457941
  [ 5 ] Bug #2458013 - CVE-2026-6100 python3.11: Python: Arbitrary code execution or information
disclosure via use-after-free in decompression modules [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2458013
  [ 6 ] Bug #2458221 - CVE-2026-4786 python3.11: Python: Arbitrary code execution via command
injection in webbrowser.open() API [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2458221
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2026-952616f3d6' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgr...

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------



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