Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python3-idle package, versions <0:3.6.8-77.el8_10


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Social Trends
EPSS
0.55% (43rd percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3IDLE-17937709
  • published10 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 Centos:8 python3-idle to version 0:3.6.8-77.el8_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-idle package and not the python3-idle package as distributed by Centos. See How to fix? for Centos:8 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