CVE-2026-87910 Affecting python3 package, versions <3.12.15-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.64% (50th percentile)

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  • Snyk IDSNYK-ALPINE323-PYTHON3-20364519
  • published1 Oct 2026
  • disclosed11 Sept 2026

Introduced: 11 Sep 2026

NewCVE-2026-87910  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 python3 to version 3.12.15-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3 package and not the python3 package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was ignored. Instead, the member should be skipped if either call returns None.

CVSS Base Scores

version 3.1