CVE-2026-6552
Authorization Bypass Through User-Controlled Key in GitLab
8.7
HIGH
CVSS 3.1
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.
How to fix CVE-2026-6552
To remediate CVE-2026-6552, upgrade the affected package to a fixed version below.
- Bitnami/gitlab—upgrade to 18.10.8 or later
Is CVE-2026-6552 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-6552.
Affected packages (1)
- >= 15.5.0, < 18.10.8, >= 18.11.0, < 18.11.5, >= 19.0.0, < 19.0.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |