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 has been discovered in GitLab CE/EE affecting all versions starting from 13.7 prior to 17.1.7, from 17.2 prior to 17.2.5, and from 17.3 prior to 17.3.2. It may have been possible for an attacker with a victim's CI_JOB_TOKEN to obtain a GitLab session token belonging to the victim.

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 was discovered in GitLab CE/EE affecting all versions starting from 16.4 prior to 17.1.7, starting from 17.2 prior to 17.2.5, starting from 17.3 prior to 17.3.2 which could cause Denial of Service via sending a specific POST request.

An issue has been discovered discovered in GitLab EE/CE affecting all versions starting from 15.10 before 17.1.7, all versions starting from 17.2 before 17.2.5, all versions starting from 17.3 before 17.3.2 will disclose user password from repository mirror configuration.

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.

An issue has been discovered in GitLab EE affecting all versions starting from 12.9 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-EE starting with version 13.3 before 17.1.7, 17.2 before 17.2.5, and 17.3 before 17.3.2 that would allow an attacker to modify an on-demand DAST scan without permissions and leak variables.

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.

A Denial of Service (DoS) condition has been discovered in GitLab CE/EE affecting all versions starting with 15.9 before 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2. It is possible for an attacker to cause catastrophic backtracking while parsing results from Elasticsearch.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.9 before 17.0.6, all versions starting from 17.1 before 17.1.4, all versions starting from 17.2 before 17.2.2. Under certain conditions, access tokens may have been logged when an API request was made in a specific manner.

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.

An issue was discovered in GitLab CE/EE affecting all versions starting from 11.10 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2, with the processing logic for parsing invalid commits can lead to a regular expression DoS attack on the server.

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.