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.

CVSS v3.1

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1

8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.31% chance of exploitation in the next 30 days, 23th percentile

Published

2026-02-25

Updated

2026-02-26

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3473276

References

• CVE Record
• NVD entry

Related

• CVE-2026-0745
• CVE-2026-0766
• CVE-2026-0743
• CVE-2026-0768
• CVE-2026-0740
• CVE-2026-0770