CVE-2026-0752
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
6.1
MEDIUM
CVSS 3.1
EPSS 0.10%
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.
How to fix CVE-2026-0752
To remediate CVE-2026-0752, upgrade the affected package to a fixed version below.
- —upgrade to 18.7.5 or later
Is CVE-2026-0752 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 16.2.0, < 18.7.5, >= 18.8.0, < 18.8.5, >= 18.9.0, < 18.9.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |