CVE-2026-0752

HIGH

8.0

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.

CVE Details

CVSS v3.1 Score8.0

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published2/25/2026

Last Modified2/28/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gitlab:gitlab

Weaknesses (CWE)

CWE-79

References

https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/(cve@gitlab.com)

https://gitlab.com/gitlab-org/gitlab/-/issues/585371(cve@gitlab.com)

https://hackerone.com/reports/3473276(cve@gitlab.com)

IOC Correlations

No correlations recorded

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