Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-6552

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
11/06/2026
Last modified:
11/06/2026

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 8.70 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x
8.70
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* 15.5.0 (including) 18.10.8 (excluding)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* 15.5.0 (including) 18.10.8 (excluding)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* 18.11.0 (including) 18.11.5 (excluding)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* 18.11.0 (including) 18.11.5 (excluding)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* 19.0.0 (including) 19.0.2 (excluding)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* 19.0.0 (including) 19.0.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools