GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when OmniAuth SAML and LDAP auto-linking were both enabled, an authenticated user could have taken over an existing LDAP-backed account without any interaction from the targeted user, due to improper input sanitization in the LDAP email lookup path used during OmniAuth identity linking.
| Vendor | Product | Versions |
|---|---|---|
| GitLab | GitLab CE/EE | 10.1, 19.4, 19.5 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| open source | gitlab | cert_advisory | 90% |
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Updated severity from HIGH to CRITICAL and added missing vendor (GitLab) and product (GitLab CE/EE) information.
Initial creation
