Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to cause denial of service through excessive memory consumption due to improper input validation.
Affected products
gitlab: gitlab
References3
- about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11… Release Notes
- gitlab.com/gitlab-org/gitlab/-/work_items/579035 Broken Link
- hackerone.com/reports/3329085 Permissions Required
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 22 · as of 14 November 2026
- CWE
- CWE-770
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.