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.
Advisories

No advisories yet.

Fixes

Solution

Upgrade to versions 18.7.5, 18.8.5, 18.9.1 or above.


Workaround

No workaround given by the vendor.

History

Wed, 25 Feb 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
First Time appeared Gitlab
Gitlab gitlab
Weaknesses CWE-79
CPEs cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Vendors & Products Gitlab
Gitlab gitlab
References
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-02-25T20:05:19.818Z

Reserved: 2026-01-08T20:04:05.088Z

Link: CVE-2026-0752

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-25T21:16:36.330

Modified: 2026-02-25T21:16:36.330

Link: CVE-2026-0752

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses