Medium severity5.4NVD Advisory· Published Mar 25, 2026· Updated Jun 17, 2026
CVE-2026-2973
CVE-2026-2973
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to execute arbitrary JavaScript in a user's browser due to improper sanitization of entity-encoded content in Mermaid diagrams.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 17.7
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*range: >=17.7.0,<18.8.7
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*range: >=17.7.0,<18.8.7
- cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:community:*:*:*
- cpe:2.3:a:gitlab:gitlab:18.10.0:*:*:*:enterprise:*:*:*
- (no CPE)range: from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1
- Range: from 17.7 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1
Patches
Vulnerability mechanics
References
2- about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/nvdRelease NotesVendor Advisory
- hackerone.com/reports/3566802nvdPermissions Required
News mentions
1- GitLab Patch Release: 18.10.1, 18.9.3, 18.8.7GitLab Security Releases · Mar 25, 2026