High severity8.0NVD Advisory· Published Apr 22, 2026· Updated Apr 23, 2026
CVE-2026-5816
CVE-2026-5816
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.10.4 and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:*+ 3 more
- cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:18.11.0:*:*:*:enterprise:*:*:*
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=18.10.0,<18.10.4
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=18.10.0,<18.10.4
Patches
Vulnerability mechanics
References
2- about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/nvdRelease NotesVendor Advisory
- hackerone.com/reports/3572231nvdPermissions Required
News mentions
1- GitLab Patch Release: 18.11.1, 18.10.4, 18.9.6GitLab Security Releases · Apr 22, 2026