Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python3.14-freethreading-idle package, versions <0:3.14.5-1.el9_8.1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Social Trends
EPSS
0.62% (47th percentile)

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  • Snyk IDSNYK-RHEL9-PYTHON314FREETHREADINGIDLE-18068375
  • published21 Jul 2026
  • disclosed9 Jul 2026

Introduced: 9 Jul 2026

NewCVE-2026-15308  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:9 python3.14-freethreading-idle to version 0:3.14.5-1.el9_8.1 or higher.
This issue was patched in RHSA-2026:41949.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14-freethreading-idle package and not the python3.14-freethreading-idle package as distributed by RHEL. See How to fix? for RHEL: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.

CVSS Base Scores

version 3.1