Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting gitlab-rails-ce-fips-19.1 package, versions <19.1.1-r1


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.98% (58th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CHAINGUARDLATEST-GITLABRAILSCEFIPS191-17707237
  • published30 Jun 2026
  • disclosed6 Mar 2026

Introduced: 6 Mar 2026

CVE-2026-29063  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Chainguard gitlab-rails-ce-fips-19.1 to version 19.1.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab-rails-ce-fips-19.1 package and not the gitlab-rails-ce-fips-19.1 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), and Map.toObject() APIs. This issue has been patched in versions 3.8.3, 4.3.7, and 5.1.5.

References

CVSS Base Scores

version 3.1