CVE-2025-4435 Affecting python3.14 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.08% (25th percentile)

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  • Snyk IDSNYK-UBUNTU2510-PYTHON314-13536069
  • published12 Oct 2025
  • disclosed3 Jun 2025

Introduced: 3 Jun 2025

CVE-2025-4435  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:25.10 python3.14.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.14 package and not the python3.14 package as distributed by Ubuntu. See How to fix? for Ubuntu:25.10 relevant fixed versions and status.

When using a TarFile.errorlevel = 0 and extracting with a filter the documented behavior is that any filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel = 0 in affected versions is that the member would still be extracted and not skipped.

CVSS Base Scores

version 3.1