CVE-2025-14513

Improper Validation of Specified Quantity in Input in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an unauthenticated user to cause a denial of service condition due to improper input validation when processing specially crafted JSON payloads in the protected branches API.

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

0.49% chance of exploitation in the next 30 days, 41st percentile

Published

2026-03-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3452477

Security advisories

• https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released

References

• CVE Record
• NVD entry