CVE-2026-6321 Affecting prism package, versions <5.15.10-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-WOLFILATEST-PRISM-16620960
  • published10 May 2026
  • disclosed4 May 2026

Introduced: 4 May 2026

NewCVE-2026-6321  (opens in a new tab)

How to fix?

Upgrade Wolfi prism to version 5.15.10-r0 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 Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize() and equal() functions. Encoded path data was treated like real slashes and parent-directory references, so distinct URIs could collapse onto the same normalized path. Applications that normalize or compare attacker-controlled URLs to enforce path-based policy can be bypassed, with a path that appears confined under an allowed prefix normalizing to a different location. Versions <= 3.1.0 are affected. Update to 3.1.1 or later.

CVSS Base Scores

version 3.1