CVE-2023-4912

Allocation of Resources Without Limits or Throttling in GitLab

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.

Affected

GitLab

CVSS v3.1 NVD

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

CVSS v3.1 GITLAB

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

EPSS

0.57% chance of exploitation in the next 30 days, 46th percentile

Published

2023-12-01

Updated

2026-04-30

Proof-of-concept exploits (1)

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

Security advisories

• https://gitlab.com/gitlab-org/gitlab/-/issues/424882

References

• CVE Record
• NVD entry