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.

Kubernetes cluster token disclosure in GitLab CE/EE 10.3 and later through 13.0.1 allows other group maintainers to view Kubernetes cluster token

An authorization issue relating to project maintainer impersonation was identified in GitLab EE 9.5 and later through 13.0.1 that could allow unauthorized users to impersonate as a maintainer to perform limited actions.

User is allowed to set an email as a notification email even without verifying the new email in all previous GitLab CE/EE versions through 13.0.1

A security issue allowed achieving Denial of Service attacks through memory exhaustion by uploading malicious artifacts in all previous GitLab versions through 13.0.1

An authorization issue in the mirroring logic allowed read access to private repositories in GitLab CE/EE 10.6 and later through 13.0.5

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

A Stored Cross-Site Scripting vulnerability allowed the execution of arbitrary Javascript code in the blobs API in all previous GitLab CE/EE versions through 13.0.1

GitLab 10.8 through 12.9 has a vulnerability that allows someone to mirror a repository even if the feature is not activated.

GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.

An issue was discovered in GitLab CE and EE 8.15 through 12.9.2. Members of a group could still have access after the group is deleted.

An issue was discovered in GitLab 10.7.0 and later through 12.9.2. A Workhorse bypass could lead to job artifact uploads and file disclosure (Exposure of Sensitive Information) via request smuggling.

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) before 12.7.9, 12.8.x before 12.8.9, and 12.9.x before 12.9.3. A Workhorse bypass could lead to NuGet package and file disclosure (Exposure of Sensitive Information) via request smuggling.

GitLab EE/CE 9.0 to 12.9 allows a maintainer to modify other maintainers' pipeline trigger descriptions within the same project.

GitLab EE/CE 8.0.rc1 to 12.9 is vulnerable to a blind SSRF in the FogBugz integration.

GitLab EE/CE 8.11 to 12.9 is leaking information on Issues opened in a public project and then moved to a private project through Web-UI and GraphQL API.

GitLab EE/CE 8.5 to 12.9 is vulnerable to a an path traversal when moving an issue between projects.

GitLab EE/CE 8.17 to 12.9 is vulnerable to information leakage when querying a merge request widget.

GitLab EE/CE 10.8 to 12.9 is leaking metadata and comments on vulnerabilities to unauthorized users on the vulnerability feedback page.

GitLab 8.10 and later through 12.9 is vulnerable to an SSRF in a project import note feature.