Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.5 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to discover the names of private projects they do not have access through API requests.
Affected products
gitlab: gitlab
References3
- about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-… Release NotesVendor Advisory
- gitlab.com/gitlab-org/gitlab/-/issues/566960 Broken Link
- gitlab.com/gitlab-org/gitlab/-/work_items/566960 Broken Link
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - EPSS — exploit probability
- 0% percentile: 26 · as of 11 November 2026
- CWE
- CWE-209
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.