Fedora 43 Python3.14 Minor Update Security Notice 2026-5b4ff2ef7d
fedora
April 23, 2026
New minor version of the Python interpreter
Summary
Python 3.14 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:
New minor version of the Python interpreter
Topics Covered
Change Log
* Wed Apr 8 2026 Karolina Surma
References
[ 1 ] Bug #2444707 - CVE-2026-2297 python3.14: CPython: Logging Bypass in Legacy .pyc File Handling [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2444707
[ 2 ] Bug #2448191 - CVE-2026-3644 python3.14: Incomplete control character validation in http.cookies [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2448191
[ 3 ] Bug #2448207 - CVE-2026-4224 python3.14: Stack overflow parsing XML with deeply nested DTD content models [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2448207
[ 4 ] Bug #2449259 - CVE-2026-3479 python3.14: Python pkgutil.get_data(): Path Traversal via improper resource argument validation [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2449259
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-9a8fddee0b' 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
informational
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Name: python3.14
Product: Fedora 43
Version: 3.14.4
Release: 1.fc43
Summary: Version 3.14 of the Python interpreter
Topics Covered
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