CVE-2026-11940 Affecting python310 package, versions <3.10.20-150400.4.115.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.75% (52nd percentile)

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  • Snyk IDSNYK-SLES154-PYTHON310-18591810
  • published8 Aug 2026
  • disclosed7 Aug 2026

Introduced: 7 Aug 2026

NewCVE-2026-11940  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 python310 to version 3.10.20-150400.4.115.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python310 package and not the python310 package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself.  The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory.  This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.

CVSS Base Scores

version 3.1