CVE-2023-4912

An issue has been discovered in GitLab EE affecting all versions starting from 10.5 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted mermaid diagram input.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1

2.6 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L

EPSS

0.58% chance of exploitation in the next 30 days, 45th percentile

Published

2023-12-01

Updated

2026-04-30

Proof-of-concept exploits (1)

• https://hackerone.com/reports/2137421

References

• CVE Record
• NVD entry

Related

• CVE-2023-49114
• CVE-2023-49147
• CVE-2023-4911
• CVE-2023-49210
• CVE-2023-49109
• CVE-2023-4922