Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that under certain conditions could have allowed an authenticated user to access CI data from a different ref type than intended.
Affected products
gitlab: gitlab
References2
- about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-… Release NotesVendor Advisory
- gitlab.com/gitlab-org/gitlab/-/work_items/570059 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: 8 · as of 14 November 2026
- CWE
- CWE-706
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.