Inefficient Regular Expression Complexity Affecting prism package, versions <5.16.0-r13


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PRISM-20415590
  • published3 Oct 2026
  • disclosed28 Sept 2026

Introduced: 28 Sep 2026

NewCVE-2026-101903  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade Chainguard prism to version 5.16.0-r13 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.

Axios is a promise-based HTTP client for the browser and Node.js. From 1.16.1 until 1.20.0, the RFC 2397 regular expression allows slash characters on both sides of the media-type separator. An application passes an attacker-controlled malformed data URL containing many slash characters and no comma. the JavaScript regular-expression engine explores many separator placements before rejecting the URL. Synchronous excessive backtracking can block the Node.js event loop and cause denial of service. The affected identifiers are fromDataURI, DATA_URL_PATTERN, data:. This issue is fixed in version 1.20.0.

CVSS Base Scores

version 3.1