A lack of length validation in Snippet descriptions in GitLab CE/EE affecting all versions prior to 15.1.6, 15.2 prior to 15.2.4 and 15.3 prior to 15.3.2 allows an authenticated attacker to create a maliciously large Snippet which when requested with or without authentication places excessive load on the server, potential leading to Denial of Service.

An issue has been discovered in GitLab affecting all versions starting from 12.10 before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2. GitLab was not performing correct authentication with some Package Registries when IP address restrictions were configured, allowing an attacker already in possession of a valid Deploy Token to misuse it from any location.

A business logic issue in the handling of large repositories in all versions of GitLab CE/EE from 10.0 before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2 allowed an authenticated and authorized user to exhaust server resources by importing a malicious project.

A crafted tag in the Jupyter Notebook viewer in GitLab EE/CE affecting all versions before 15.1.6, 15.2 to 15.2.4, and 15.3 to 15.3.2 allows an attacker to issue arbitrary HTTP requests

An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. GitLab was returning contributor emails due to improper data handling in the Datadog integration.

A cross-site scripting issue has been discovered in GitLab CE/EE affecting all versions before 15.0.5, 15.1 prior to 15.1.4, and 15.2 prior to 15.2.1. A stored XSS flaw in job error messages allows attackers to perform arbitrary actions on behalf of victims at client side.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.6 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. A malicious developer could exfiltrate an integration's access token by modifying the integration URL such that authenticated requests are sent to an attacker controlled server.

An issue has been discovered in GitLab EE affecting all versions before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. It may be possible for email invited members to join a project even after the Group Owner has enabled the setting to prevent members from being added to projects in a group, if the invite was sent before the setting was enabled.

An issue has been discovered in GitLab CE/EE affecting all versions before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. It may be possible for malicious group or project maintainers to change their corresponding group or project visibility by crafting a malicious POST request.

Insufficient validation in GitLab CE/EE affecting all versions from 12.10 prior to 15.0.5, 15.1 prior to 15.1.4, and 15.2 prior to 15.2.1 allows an authenticated and authorised user to import a project that includes branch names which are 40 hexadecimal characters, which could be abused in supply chain attacks where a victim pinned to a specific Git commit of the project.

An issue has been discovered in GitLab CE/EE affecting all versions before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. It may be possible to gain access to a private project through an email invite by using other user's email address as an unverified secondary email.

A lack of cascading deletes in GitLab CE/EE affecting all versions starting from 13.0 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1 allows a malicious Group Owner to retain a usable Group Access Token even after the Group is deleted, though the APIs usable by that token are limited.

An issue has been discovered in GitLab CE/EE affecting all versions before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. It may be possible for group members to bypass 2FA enforcement enabled at the group level by using Resource Owner Password Credentials grant to obtain an access token without using 2FA.

An improper access control check in GitLab CE/EE affecting all versions starting from 13.7 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1 allows a malicious authenticated user to view a public project's Deploy Key's public fingerprint and name when that key has write permission. Note that GitLab never asks for nor stores the private key.

A Regular Expression Denial of Service vulnerability in GitLab CE/EE affecting all versions from 1.0.2 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to make a GitLab instance inaccessible via specially crafted web server response headers

An issue has been discovered in GitLab affecting all versions starting from 12.4 before 14.10.5, all versions starting from 15.0 before 15.0.4, all versions starting from 15.1 before 15.1.1. GitLab was leaking Conan packages names due to incorrect permissions verification.

An improper authorization issue in GitLab CE/EE affecting all versions from 13.7 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to extract the value of an unprotected variable they know the name of in public projects or private projects they're a member of.

An issue has been discovered in GitLab CE/EE affecting all versions from 8.13 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1. Under certain conditions, using the REST API an unprivileged user was able to change labels description.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4 before 14.10.5, all versions starting from 15.0 before 15.0.4, all versions starting from 15.1 before 15.1.1. GitLab reveals if a user has enabled two-factor authentication on their account in the HTML source, to unauthenticated users.

An open redirect vulnerability in GitLab EE/CE affecting all versions from 11.1 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1, allows an attacker to redirect users to an arbitrary location if they trust the URL.