Directory Traversal Affecting actions-runner package, versions <2.332.0-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ACTIONSRUNNER-15690789
  • published19 Mar 2026
  • disclosed10 Mar 2026

Introduced: 10 Mar 2026

CVE-2026-31802  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard actions-runner to version 2.332.0-r2 or higher.

NVD Description

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

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.

CVSS Base Scores

version 3.1