Fedora alert FEDORA-2026-7ef4d2b23d (python3.10)

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[SECURITY] Fedora 44 Update: python3.10-3.10.21-1.fc44
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Wed, 26 Aug 2026 01:13:59 +0000
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<20260826011359.15CFD187D293@bastion01.rdu3.fedoraproject.org>
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Article
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Fedora Update Notification
FEDORA-2026-7ef4d2b23d
2026-08-26 01:12:20.892063+00:00
--------------------------------------------------------------------------------

Name        : python3.10
Product     : Fedora 44
Version     : 3.10.21
Release     : 1.fc44
URL         : https://www.python.org/
Summary     : Version 3.10 of the Python interpreter
Description :
Python 3.10 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 python3.10 package provides the "python3.10" executable: the reference
interpreter for the Python language, version 3.
The majority of its standard library is provided in the python3.10-libs package,
which should be installed automatically along with python3.10.
The remaining parts of the Python standard library are broken out into the
python3.10-tkinter and python3.10-test packages, which may need to be installed
separately.

Documentation for Python is provided in the python3.10-docs package.

Packages containing additional libraries for Python are generally named with
the "python3.10-" prefix.

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

Security release of Python 3.10 interpreter
--------------------------------------------------------------------------------
ChangeLog:

* Thu Aug 13 2026 Karolina Surma <ksurma@redhat.com> - 3.10.21-1
- Update to Python 3.10.21
* Thu Jul 30 2026 Miro Hrončok <mhroncok@redhat.com> - 3.10.20-4
- Skip UDP Lite tests if it's not supported
 - Fixes FTBFS on Linux kernel 7.1 and newer
* Thu Jul 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 3.10.20-3
- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #2444703 - CVE-2026-2297 python3.10: CPython: Logging Bypass in Legacy .pyc File
Handling [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2444703
  [ 2 ] Bug #2448187 - CVE-2026-3644 python3.10: Incomplete control character validation in
http.cookies [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2448187
  [ 3 ] Bug #2448203 - CVE-2026-4224 python3.10: Stack overflow parsing XML with deeply nested DTD
content models [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2448203
  [ 4 ] Bug #2449726 - CVE-2026-4519 python3.10: Python: Command-line option injection in
webbrowser.open() via crafted URLs [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2449726
  [ 5 ] Bug #2457940 - CVE-2026-1502 python3.10: Python: HTTP header injection via CR/LF in proxy
tunnel headers [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2457940
  [ 6 ] Bug #2458012 - CVE-2026-6100 python3.10: Python: Arbitrary code execution or information
disclosure via use-after-free in decompression modules [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2458012
  [ 7 ] Bug #2458220 - CVE-2026-4786 python3.10: Python: Arbitrary code execution via command
injection in webbrowser.open() API [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2458220
  [ 8 ] Bug #2484554 - CVE-2026-3276 python3.10: Python unicodedata: Denial of Service due to
excessive CPU consumption [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2484554
  [ 9 ] Bug #2498690 - CVE-2026-15308 python3.10: Python: CPU Denial of Service in HTML parser via
repeated unterminated markup declarations [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2498690
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2026-7ef4d2b23d' 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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