CVE-2026-4224 Affecting python39-base package, versions <3.9.25-150300.4.99.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-SLES155-PYTHON39BASE-16068439
  • published15 Apr 2026
  • disclosed13 Apr 2026

Introduced: 13 Apr 2026

NewCVE-2026-4224  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 python39-base to version 3.9.25-150300.4.99.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-base package and not the python39-base package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.

CVSS Base Scores

version 3.1