Unrated severityNVD Advisory· Published Feb 25, 2026· Updated Feb 26, 2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
CVE-2026-0752
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that under certain circumstances, could have allowed an unauthenticated user to inject arbitrary scripts into the Mermaid sandbox UI.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*range: 16.2
- (no CPE)range: >=16.2, <18.7.5, >=18.8, <18.8.5, >=18.9, <18.9.1
Patches
Vulnerability mechanics
References
3- hackerone.com/reports/3473276mitretechnical-descriptionexploitpermissions-required
- gitlab.com/gitlab-org/gitlab/-/issues/585371mitreissue-trackingpermissions-required
- about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/mitre
News mentions
1- GitLab Patch Release: 18.9.1, 18.8.5, 18.7.5GitLab Security Releases · Feb 25, 2026