An issue was discovered in GitLab CE/EE affecting all versions prior to 16.11.6, starting from 17.0 prior to 17.0.4, and starting from 17.1 prior to 17.1.2, which allows a subdomain takeover in GitLab Pages.
Weakness
The product performs a comparison between entities that must consider multiple factors or characteristics of each entity, but the comparison does not include one or more of these factors.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gitlab | Gitlab | * | 16.11.6 (excluding) |
| Gitlab | Gitlab | 17.0.0 (including) | 17.0.4 (excluding) |
| Gitlab | Gitlab | 17.1.0 (including) | 17.1.2 (excluding) |
| Gitlab | Ubuntu | esm-apps/xenial | * |