Directory Traversal Affecting prism package, versions <5.14.3-r7


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PRISM-15357617
  • published26 Feb 2026
  • disclosed20 Feb 2026

Introduced: 20 Feb 2026

CVE-2026-26960  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard prism to version 5.14.3-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream prism package and not the prism 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. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting user. Severity is high because the primitive bypasses path protections and turns archive extraction into a direct filesystem access primitive. This issue has been fixed in version 7.5.8.

CVSS Base Scores

version 3.1