CVE-2026-12910
Published:September 15, 2026
Updated:October 08, 2026
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.
Affected Packages
https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.3.0-rc42 <v19.3.2Fix Suggestion:
Update to version v19.3.2https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.2.0-rc42 <v19.2.6Fix Suggestion:
Update to version v19.2.6https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.1.0-rc42 <v19.1.8Fix Suggestion:
Update to version v19.1.8Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Missing Authentication for Critical Function
EPSS
Base Score:
0.19