Red Hat Security AdvisoryRHSA-2026:39771
python3.12 security update
Released 2026-07-15 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream (v. 9) python3.12-3.12.13-3.el9_8.1, python3.12-devel-3.12.13-3.el9_8.1, python3.12-libs-3.12.13-3.el9_8.1 +1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3.12-3.12.13-3.el9_8.1, python3.12-debug-3.12.13-3.el9_8.1, python3.12-idle-3.12.13-3.el9_8.1 +2
Fixes 1 record
Priority MEDIUM 45
The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00637 · Published 2026-07-09 · Partial fix · 3.10.21, 3.11.16 +4 CWE-400
