CVE-2026-4868CWE-639

CVE-2026-4868

High · published May 27, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
38.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00455 · 38.5th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-05-27T23:16Z
Affected products (3)
ProductVersionsFixed in
gitlab/gitlab≥ 18.8.0, < 18.10.718.10.7
gitlab/gitlab≥ 18.11.0, < 18.11.418.11.4
gitlab/gitlaball versions—
References (3)
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/ · [email protected]https://gitlab.com/gitlab-org/gitlab/-/work_items/594809 · [email protected]https://hackerone.com/reports/3619872 · [email protected]
EPSS history
Timeline
  • 27 MAY 17:55Z
    Authorization Bypass Through User-Controlled Key in GitLab
    cvelistv5