CVE-2025-12576

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.3 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that under certain conditions could have allowed an authenticated user to cause a denial of service due to improper handling of webhook response data.

CVSS v3.1

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

EPSS

0.39% chance of exploitation in the next 30 days, 32th percentile

Published

2026-03-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3395198

References

• CVE Record
• NVD entry

Related

• CVE-2025-12575
• CVE-2025-12593
• CVE-2025-12573
• CVE-2025-12594
• CVE-2025-12571
• CVE-2025-12595