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Fedora 43 mingw-python-idna Critical DoS Risk Update 2026-9dbf4d0ca8

fedora
Calendar Grey July 20, 2026
Scroller Fedora
A crucial update for Fedora 43 addresses a critical denial of service issue in mingw-python-idna, enhancing system security.
Update to 3.18.

Summary

MinGW Windows Python idna.

Update Information:

Update to 3.18.

Topics%20covered

Topics Covered

security advisory denial of service fedora update important mingw-python-idna

Change Log

* Mon Jun 15 2026 Sandro Mani - 3.18-1 - Update to 3.18 * Fri May 15 2026 Sandro Mani - 3.15-1 - Update to 3.15 * Sun Apr 26 2026 Sandro Mani - 3.13-1 - Update to 3.13 * Fri Jan 16 2026 Fedora Release Engineering - 3.11-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild * Sun Oct 19 2025 Sandro Mani - 3.11-1 - Update to 3.11

References


[ 1 ] Bug #2498561 - CVE-2026-45409 mingw-python-idna: idna: Denial of Service via specially crafted long inputs [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2498561

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-9dbf4d0ca8' 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
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Critical

Name: mingw-python-idna
Product: Fedora 43
Version: 3.18
Release: 1.fc43
URL: https://github.com/kjd/idna
Summary: MinGW Windows Python idna

Topics%20covered

Topics Covered

security advisory denial of service fedora update important mingw-python-idna

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