Gitlab CE/EE, versions 8.6 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an incorrect access control vulnerability that displays to an unauthorized user the title and namespace of a confidential issue.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gitlab | Gitlab | 8.6.0 (including) | 11.3.11 (excluding) |
| Gitlab | Gitlab | 11.4.0 (including) | 11.4.8 (excluding) |
| Gitlab | Gitlab | 11.5.0 (including) | 11.5.1 (excluding) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: