CVE-2025-12664

Improper Validation of Specified Quantity in Input in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.0 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service by sending repeated GraphQL queries.

Affected

GitLab

CVSS v3.1 GITLAB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.58% chance of exploitation in the next 30 days, 46th percentile

Published

2026-04-08

Updated

2026-04-09

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3377091

Security advisories

• https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released

References

• CVE Record
• NVD entry