When requests to the internal network for webhooks are enabled, a server-side request forgery vulnerability in GitLab CE/EE affecting all versions starting from 10.5 was possible to exploit for an unauthenticated attacker even on a GitLab instance where registration is limited

An issue has been discovered in GitLab affecting versions >=10.7 <13.0.14, >=13.1.0 <13.1.8, >=13.2.0 <13.2.6. Improper Access Control for Deploy Tokens

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. The profile activity page was not restricting the amount of results one could request, potentially resulting in a denial of service.

A vulnerability was discovered in GitLab runner versions before 13.1.3, 13.2.3 and 13.3.1. It was possible to make the gitlab-runner process crash by sending malformed queries, resulting in a denial of service.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was vulnerable to a blind SSRF attack through the repository mirroring feature.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab Webhook feature could be abused to perform denial of service attacks due to the lack of rate limitation.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was not invalidating project invitation link upon removing a user from a project.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Same 2 factor Authentication secret code was generated which resulted an attacker to maintain access under certain conditions.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Under certain conditions GitLab was not properly revoking user sessions and allowed a malicious user to access a user account with an old password.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab was vulnerable to a stored XSS on the standalone vulnerability page.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Conan package upload functionality was not properly validating the supplied parameters, which resulted in the limited files disclosure.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. When 2 factor authentication was enabled for groups, a malicious user could bypass that restriction by sending a specific query to the API endpoint.

In GitLab before 13.0.12, 13.1.6 and 13.2.3, access grants were not revoked when a user revoked access to an application.

In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.

In GitLab before 13.0.12, 13.1.6 and 13.2.3, it is possible to bypass E-mail verification which is required for OAuth Flow.