Red Hat Security AdvisoryRHSA-2026:47939
python3.12 security update
Released 2026-07-29 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) python-unversioned-command-3.12.9-2.el10_0.10, python3-devel-3.12.9-2.el10_0.10, python3-tkinter-3.12.9-2.el10_0.10
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0) python3-3.12.9-2.el10_0.10, python3-libs-3.12.9-2.el10_0.10, python3.12-3.12.9-2.el10_0.10
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) python3-debug-3.12.9-2.el10_0.10, python3-idle-3.12.9-2.el10_0.10, python3-test-3.12.9-2.el10_0.10
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
