HIGHCVE-2026-0752Published Modified CNA GitLab
CVE-2026-0752: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
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.
Metrics
- CVSS v3.1
- 8.0
- Severity
- HIGH
- Fixed in
- 18.7.5
- Affected Products
- 1
Fix available
18.7.518.8.518.9.1
Affected packages
- GitLab / GitLab< 18.7.5 (from 16.2) · < 18.8.5 (from 18.8) · < 18.9.1 (from 18.9)
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N