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Fedora 43 python-mistune Important Code Execution Fix CVE-2026-44898

fedora
Calendar Grey June 27, 2026
Dist Fedora Esm H88
Essential security fix for python-mistune on Fedora 43 addressing CVE-2026-44898 to prevent code execution risks.
Security fix for CVE-2026-44898 by updating to 3.2.1.

Summary

The fastest markdown parser in pure Python, inspired by marked.

Update Information:

Security fix for CVE-2026-44898 by updating to 3.2.1.

Topics%20covered

Topics Covered

security advisory fedora arbitrary code execution important python-mistune CVE-2026-44898

Change Log

* Thu Jun 18 2026 Miro Hrončok - 3.2.1-1 - Update to 3.2.1 - Security fix for CVE-2026-44898 - Fixes: rhbz#2424578 - Fixes: rhbz#2489782 * Thu Jun 4 2026 Python Maint - 3.1.3-7 - Rebuilt for Python 3.15 * Sat Jan 17 2026 Fedora Release Engineering - 3.1.3-6 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild

References


[ 1 ] Bug #2424578 - python-mistune-3.2.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2424578 [ 2 ] Bug #2489782 - CVE-2026-44898 python-mistune: Mistune: Arbitrary code execution via HTML injection in table of contents rendering [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2489782

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-c52d83db89' 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

Severity
important
Lowest
Low
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Critical

Name: python-mistune
Product: Fedora 43
Version: 3.2.1
Release: 1.fc43
URL: https://github.com/lepture/mistune
Summary: Markdown parser for Python

Topics%20covered

Topics Covered

security advisory fedora arbitrary code execution important python-mistune CVE-2026-44898

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