CVE-2026-15308 Affecting python3.14-devel package, versions <0:3.14.5-1.el10_2.1


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.64% (48th percentile)

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  • Snyk IDSNYK-ALMALINUX10-PYTHON314DEVEL-18065452
  • published21 Jul 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

CVE-2026-15308  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 python3.14-devel to version 0:3.14.5-1.el10_2.1 or higher.
This issue was patched in ALSA-2026:40856.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14-devel package and not the python3.14-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated unterminated markup declarations when processing uncontrolled data.

References

CVSS Base Scores

version 3.1