An issue was discovered in GitLab Enterprise Edition 8.3 through 12.0.2. The color codes decoder was vulnerable to a resource depletion attack if specific formats were used. It allows Uncontrolled Resource Consumption.
An issue was discovered in GitLab Community and Enterprise Edition before 12.0.3. One of the parsers used by Gilab CI was vulnerable to a resource exhaustion attack. It allows Uncontrolled Resource Consumption.
An issue was discovered in GitLab Community and Enterprise Edition 6.8 through 11.11. Users could bypass the mandatory external authentication provider sign-in restrictions by sending a specially crafted request. It has Improper Authorization.