Fedora alert FEDORA-2026-f8f1b315d0 (python3.12)

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[SECURITY] Fedora 42 Update: python3.12-3.12.12-3.fc42
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Sun, 25 Jan 2026 01:16:50 +0000
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<20260125011650.DE2677661F@bastion01.rdu3.fedoraproject.org>
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Article
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Fedora Update Notification
FEDORA-2026-f8f1b315d0
2026-01-25 01:15:35.207010+00:00
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Name        : python3.12
Product     : Fedora 42
Version     : 3.12.12
Release     : 3.fc42
URL         : https://www.python.org/
Summary     : Version 3.12 of the Python interpreter
Description :
Python 3.12 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 python3.12 package provides the "python3.12" executable: the reference
interpreter for the Python language, version 3.
The majority of its standard library is provided in the python3.12-libs package,
which should be installed automatically along with python3.12.
The remaining parts of the Python standard library are broken out into the
python3.12-tkinter and python3.12-test packages, which may need to be installed
separately.

Documentation for Python is provided in the python3.12-docs package.

Packages containing additional libraries for Python are generally named with
the "python3.12-" prefix.

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Update Information:

Security fix for CVE-2025-13836
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ChangeLog:

* Fri Jan 16 2026 Lumír Balhar <lbalhar@redhat.com> - 3.12.12-3
- Security fix for CVE-2025-13836
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References:

  [ 1 ] Bug #2428933 - CVE-2025-13836 python3.12: Excessive read buffering DoS in http.client
[fedora-42]
        https://bugzilla.redhat.com/show_bug.cgi?id=2428933
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2026-f8f1b315d0' 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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