CVE-2026-0752
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.
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version



Related Resources
References
https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0752.json, https://nvd.nist.gov/vuln/detail/CVE-2026-0752, https://gitlab.com/gitlab-org/gitlab/-/issues/585371, https://hackerone.com/reports/3473276, git://git@gitlab.com:gitlab-org/gitlab.git
