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Gitlab CVE-2026-4868

| EUVDEUVD-2026-32620 HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-05-27 cve@gitlab.com GHSA-64q9-48cg-f6vv
8.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.2 HIGH
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

2
Patch available
May 27, 2026 - 20:04 EUVD
Analysis Generated
May 27, 2026 - 19:55 vuln.today

DescriptionCVE.org

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.

AnalysisAI

Identity confusion in GitLab EE's Duo AI workflow runners lets an authenticated, low-privileged user cause specific Duo AI workflows to execute under another user's identity, crossing the trust boundary between accounts (CVSS scope: changed). The flaw stems from improper user identity resolution and affects GitLab Enterprise Edition 18.8 through 18.10.6, 18.11 through 18.11.3, and 19.0, with High confidentiality and integrity impact but no availability impact. No public exploit has been identified, CISA's SSVC marks exploitation as 'none,' and the High attack complexity (AC:H) combined with the 'under certain conditions' caveat indicates exploitation is non-trivial rather than push-button.

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CVE-2026-4868 vulnerability details – vuln.today

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