Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.4 before 18.4.3, and 18.5 before 18.5.1 that under certain conditions could have allowed authenticated users to gain unauthorized project access by exploiting the access request approval workflow.
Affected products
gitlab: gitlab
References3
- about.gitlab.com/releases/2025/10/22/patch-release-gitlab-18-5-… Release NotesVendor Advisory
- gitlab.com/gitlab-org/gitlab/-/issues/551267 Broken Link
- hackerone.com/reports/3209641 Permissions Required
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 25 · as of 10 November 2026
- CWE
- CWE-840
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.