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CVE-2026-4868

Authorization Bypass Through User-Controlled Key in GitLab

Published: May 27, 2026Updated: May 27, 2026 Sources: CVE List NVD BDUCWE-639
8.2HIGH
NVD MITRE
EPSS Score
0.3%
Top 73.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-639

Affected Products

GitLab Inc.
commercial·US
GitlabOn-premWeb App
DevTools & CI / source-control
GitLab
commercial·NLaka gitlab ce/ee
GitLabSaaSWeb App
DevTools & CI / ci-cd
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
about.gitlab.com
https://hackerone.com/reports/3619872
hackerone.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/594809
gitlab.com
and 1 more references View all →
News mentions
1

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