Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 16.2.0, < 18.7.5 |
Related Weaknesses (CWE)
References
- https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-releaseRelease NotesVendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/585371Broken Link
- https://hackerone.com/reports/3473276Permissions Required
FAQ
What is CVE-2026-0752?
CVE-2026-0752 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 unauth...
How severe is CVE-2026-0752?
CVE-2026-0752 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0752?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.