Description
GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 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 cause specific Duo AI workflows to run under another user's identity due to improper user identity resolution when triggering Duo AI workflow runners.
Affected products
gitlab: gitlab
References3
- about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-… Release NotesVendor Advisory
- gitlab.com/gitlab-org/gitlab/-/work_items/594809 Broken Link
- hackerone.com/reports/3619872 Permissions Required
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 38 · as of 14 November 2026
- CWE
- CWE-639
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.