CVE-2026-0752

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

Summary

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Affected packages

Bitnami gitlab

[{"type":"SEMVER","events":[{"introduced":"16.2.0"},{"fixed":"18.7.5"},{"introduced":"18.8.0"},{"fixed":"18.8.5"},{"introduced":"18.9.0"},{"fixed":"18.9.1"}]}]

References

advisory about.gitlab.com
web gitlab.com
web hackerone.com
web nvd.nist.gov