Cross-site Scripting (XSS) Affecting gitlab-rails-ce-fips-18.10 package, versions <18.10.8-r8


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.41% (33rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-GITLABRAILSCEFIPS1810-20676210
  • published9 Oct 2026
  • disclosed23 Apr 2026

Introduced: 23 Apr 2026

CVE-2026-41239  (opens in a new tab)
CWE-79  (opens in a new tab)
CWE-1289  (opens in a new tab)

How to fix?

Upgrade Chainguard gitlab-rails-ce-fips-18.10 to version 18.10.8-r8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab-rails-ce-fips-18.10 package and not the gitlab-rails-ce-fips-18.10 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Starting in version 1.0.10 and prior to version 3.4.0, SAFE_FOR_TEMPLATES strips {{...}} expressions from untrusted HTML. This works in string mode but not with RETURN_DOM or RETURN_DOM_FRAGMENT, allowing XSS via template-evaluating frameworks like Vue 2. Version 3.4.0 patches the issue.

CVSS Base Scores

version 3.1