Fedora 42: Critical DoS Vulnerabilities in Python 3.13 and Updates
fedora
December 19, 2025
This is the eleventh maintenance release of Python 3.13
Summary
Python 3.13 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.
Update Information:
This is the eleventh maintenance release of Python 3.13
Topics Covered
Change Log
* Fri Dec 5 2025 Miro Hron\u010dok
References
[ 1 ] Bug #2402874 - CVE-2025-8291 python3.13: Python zipfile End of Central Directory (EOCD) Locator record offset not checked [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2402874
[ 2 ] Bug #2413057 - CVE-2025-6075 python3.13: Quadratic complexity in os.path.expandvars() with user-controlled template [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2413057
[ 3 ] Bug #2421614 - CVE-2025-12084 python3.13: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service [fedora-42]
https://bugzilla.redhat.com/show_bug.cgi?id=2421614
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-7ec743931c' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Severity
important
Lowest
Low
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Critical
Name: python3.13
Product: Fedora 42
Version: 3.13.11
Release: 1.fc42
Summary: Version 3.13 of the Python interpreter
Topics Covered
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