CVE-2026-4868

EUVD-2026-32620
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
gitlabgitlab
18.8.0 ≤
𝑥
< 18.10.7
gitlabgitlab
18.11.0 ≤
𝑥
< 18.11.4
gitlabgitlab
19.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/594809
https://hackerone.com/reports/3619872