Cross-site Scripting (XSS) Affecting gitlab-rails-ce-fips-18.9 package, versions <18.9.8-r8


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.31% (21st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-GITLABRAILSCEFIPS189-20677207
  • published9 Oct 2026
  • disclosed23 Jul 2026

Introduced: 23 Jul 2026

CVE-2026-65914  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Chainguard gitlab-rails-ce-fips-18.9 to version 18.9.8-r8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab-rails-ce-fips-18.9 package and not the gitlab-rails-ce-fips-18.9 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

DOMPurify before 3.3.2 contains a mutation-XSS vulnerability when sanitized HTML is reinserted into special parsing contexts using innerHTML with wrappers like script, xmp, iframe, noembed, noframes, or noscript. Attackers can craft payloads with closing sequences that break out of the wrapper context during reparsing, reactivating dangerous markup with event handlers to execute JavaScript.

CVSS Base Scores

version 3.1