CVE-2026-12910

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that under certain conditions could have allowed an authenticated user to bypass SAML SSO sign-in restrictions and authenticate without SSO due to missing authentication enforcement checks.

Scoring

Severity
MEDIUM
CVSS base score
5.4
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS probability
0.32%
CWE
CWE-306
Published
2026-09-15
Last modified
2026-09-15

Affected products

Weakness type

Related vulnerabilities

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