An issue has been discovered in GitLab EE affecting all versions starting from 11.1 before 17.1.7, 17.2 before 17.2.5, and 17.3 before 17.3.2. Under certain conditions an open redirect vulnerability could allow for an account takeover by breaking the OAuth flow.

An issue was discovered in GitLab CE/EE affecting all versions starting from 8.14 prior to 17.1.7, starting from 17.2 prior to 17.2.5, and starting from 17.3 prior to 17.3.2, which allows an attacker to trigger a pipeline as an arbitrary user under certain circumstances.

An issue has been discovered in GitLab EE affecting all versions starting from 11.2 before 17.1.7, all versions starting from 17.2 before 17.2.5, all versions starting from 17.3 before 17.3.2. It was possible for a guest to read the source code of a private project by using group templates.

The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.

A Denial of Service (DoS) issue has been discovered in GitLab CE/EE affecting all versions prior to 17.1.6, 17.2 prior to 17.2.4, and 17.3 prior to 17.3.1. A denial of service could occur upon importing a maliciously crafted repository using the GitHub importer.

An issue was discovered in GitLab CE/EE affecting all versions starting from 8.2 prior to 17.1.6 starting from 17.2 prior to 17.2.4, and starting from 17.3 prior to 17.3.1, which allows an attacker to create a branch with the same name as a deleted tag.

Multiple Denial of Service (DoS) conditions has been discovered in GitLab CE/EE affecting all versions starting from 1.0 prior to 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2 which allowed an attacker to cause resource exhaustion via banzai pipeline.

A cross-site scripting issue has been discovered in GitLab affecting all versions starting from 5.1 prior 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2. When viewing an XML file in a repository in raw mode, it can be made to render as HTML if viewed under specific circumstances.

An issue has been discovered in GitLab CE/EE affecting all versions before 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2. An issue was found that allows someone to abuse a discrepancy between the Web application display and the git command line interface to social engineer victims into cloning non-trusted code.

A permission check vulnerability in GitLab CE/EE affecting all versions starting from 8.12 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2 allowed for LFS tokens to read and write to the user owned repositories.

ReDoS flaw in RefMatcher when matching branch names using wildcards in GitLab EE/CE affecting all versions from 11.3 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2 allows denial of service via Regex backtracking.

An issue was discovered in GitLab CE/EE affecting all versions starting from 8.16 prior to 17.0.6, starting from 17.1 prior to 17.1.4, and starting from 17.2 prior to 17.2.2, which causes the web interface to fail to render the diff correctly when the path is encoded.

Multiple Denial of Service (DoS) conditions has been discovered in GitLab CE/EE affecting all versions starting from 1.0 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1 which allowed an attacker to cause resource exhaustion via banzai pipeline.

An issue was discovered in GitLab CE/EE affecting all versions starting from 9.2 prior to 16.11.5, starting from 17.0 prior to 17.0.3, and starting from 17.1 prior to 17.1.1, with the processing logic for generating link in dependency files can lead to a regular expression DoS attack on the server

A cross-site scripting issue has been discovered in GitLab affecting all versions starting from 5.1 before 16.10.7, all versions starting from 16.11 before 16.111.4, all versions starting from 17.0 before 17.0.2. When viewing an XML file in a repository in raw mode, it can be made to render as HTML if viewed under specific circumstances.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.4 prior to 16.10.7, starting from 16.11 prior to 16.11.4, and starting from 17.0 prior to 17.0.2. A vulnerability in GitLab's Asana integration allowed an attacker to potentially cause a regular expression denial of service by sending specially crafted requests.

An issue has been discovered in GitLab CE/EE affecting all versions prior to 16.10.7, starting from 16.11 prior to 16.11.4, and starting from 17.0 prior to 17.0.2. A vulnerability in GitLab's CI/CD pipeline editor could allow for denial of service attacks through maliciously crafted configuration files.

An issue has been discovered in GitLab affecting all versions before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for group members with sub-maintainer role to change the title of privately accessible deploy keys associated with projects in the group.

An issue has been discovered in GitLab EE affecting all versions starting from 11.3 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted content in the CODEOWNERS file.

An issue has been discovered in GitLab affecting all versions before 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1. It was possible to read the user email address via tags feed although the visibility in the user profile has been disabled.