CVE-2025-22873 Affecting cosign package, versions <2.5.0-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0% (1st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-COSIGN-15247006
  • published7 Feb 2026
  • disclosed4 Feb 2026

Introduced: 4 Feb 2026

NewCVE-2025-22873  (opens in a new tab)

How to fix?

Upgrade Minimos:latest cosign to version 2.5.0-r3 or higher.

NVD Description

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

It was possible to improperly access the parent directory of an os.Root by opening a filename ending in "../". For example, Root.Open("../") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.

CVSS Base Scores

version 3.1