PT-2026-120889 · Gitlab · Gitlab
CVE-2026-16255
·
Published
2026-10-21
·
Updated
2026-10-22
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
GitLab has remediated an issue in GitLab EE affecting all versions from 12.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when the instance-wide SAML or LDAP membership lock was enabled, an authenticated user could have granted or accepted project and group membership outside the identity provider's control, due to incomplete enforcement of the membership lock on requests created before the lock was enabled.
Exploit
Fix
Incorrect Authorization
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Weakness Enumeration
Related Identifiers
Affected Products
Gitlab