CVE-2026-6552

GitLab has remediated an issue in GitLab EE affecting all versions from 15.5 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with group Owner role to take over another group member's GitLab account due to improper authorization in the Group SAML identity management functionality.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/597295	Issue Tracking
https://hackerone.com/reports/3655189	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

History

11 Jun 2026, 17:36

Type	Values Removed	Values Added
First Time		Gitlab Gitlab gitlab
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::* cpe:2.3:a:gitlab:gitlab:::::community:::*
References	~~() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ -~~	() https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/ - Release Notes
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/597295 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/597295 - Issue Tracking
References	~~() https://hackerone.com/reports/3655189 -~~	() https://hackerone.com/reports/3655189 - Permissions Required

11 Jun 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-11 12:16

Updated : 2026-06-11 17:36

NVD link : CVE-2026-6552

Mitre link : CVE-2026-6552

CVE.ORG link : CVE-2026-6552

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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