CVE-2026-4868

HIGH

Authorization Bypass Through User-Controlled Key in GitLab

Title source: cna
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 8.2
EPSS 0.0028
EPSS Percentile 19.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-639
Status published
Products (5)
gitlab/gitlab 19.0.0
GitLab/GitLab 18.11 - 18.11.4
GitLab/GitLab 18.8 - 18.10.7
gitlab/gitlab 18.8.0 - 18.10.7
GitLab/GitLab 19.0 - 19.0.1
Published May 27, 2026
Tracked Since May 28, 2026