Red Hat Security Advisory

RHSA-2026:54290

python-idna security update

Released 2026-08-12 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Red Hat Enterprise Linux BaseOS (v. 8) python-idna-2.5-8.el8_10, python3-idna-2.5-8.el8_10

Fixes 1 record

TI-2026-33198 CVE-2026-45409 · GHSA-65pc-fj4g-8rjx

Regular expression denial of service in kjd idna

LOW 37

Internationalized Domain Names in Applications (IDNA) for Python provides support for Internationalized Domain Names in Applications (IDNA) and Unicode IDNA Compatibility Processing.

CVSS 4.0MEDIUM 6.9 Network No auth No interaction EPSS 0.00408 Published 2026-06-05 Partial fix · 3.15 CWE-1333