CVE-2025-12576

medium

Description

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.

References

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

https://hackerone.com/reports/3395198

https://gitlab.com/gitlab-org/gitlab/-/work_items/579170

Details

Source: Mitre, NVD

Published: 2026-03-11

Updated: 2026-03-18

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00034