SAML SSO Bypass Vulnerability in GitLab EE

CVE-2022-4331 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

An issue has been discovered in GitLab EE affecting all versions starting from 15.1 before 15.7.8, all versions starting from 15.8 before 15.8.4, all versions starting from 15.9 before 15.9.2. If a group with SAML SSO enabled is transferred to a new namespace as a child group, it's possible previously removed malicious maintainer or owner of the child group can still gain access to the group via SSO or a SCIM token to perform actions on the group.

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