CVE-2026-15308 Affecting python3.12-tkinter package, versions <0:3.12.13-3.el9_8.1


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-ALMALINUX9-PYTHON312TKINTER-17992654
  • published16 Jul 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

NewCVE-2026-15308  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 python3.12-tkinter to version 0:3.12.13-3.el9_8.1 or higher.
This issue was patched in ALSA-2026:39771.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.12-tkinter package and not the python3.12-tkinter package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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