An issue was discovered in GitLab Community and Enterprise Edition 11.x before 11.3.11, 11.4.x before 11.4.8, and 11.5.x before 11.5.1. There is a persistent XSS vulnerability in the environment pages due to a lack of input validation and output encoding.

GitLab 10.4 through 12.8.1 allows Directory Traversal. A particular endpoint was vulnerable to a directory traversal vulnerability, leading to arbitrary file read.

An access control vulnerability in GitLab EE/CE affecting all versions from 14.8 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1, allows authenticated users to enumerate issues in non-linked sentry projects.

Path traversal vulnerability in package upload functionality in GitLab CE/EE starting from 12.8 allows an attacker to save packages in arbitrary locations. Affected versions are >=12.8, <13.3.9,>=13.4, <13.4.5,>=13.5, <13.5.2.

Improper group membership validation when deleting a user account in GitLab >=7.12 allows a user to delete own account without deleting/transferring their group.

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.

GitLab through 12.9 is affected by a potential DoS in repository archive download.

GitLab Enterprise Edition (EE) 9.0 and later through 12.5 allows Information Disclosure.

An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It has a Race Condition which could allow users to approve a merge request multiple times and potentially reach the approval count required to merge.

A denial of service condition exists in the Prometheus server bundled with GitLab affecting all versions from 11.10 to 15.8.5, 15.9 to 15.9.4 and 15.10 to 15.10.1.

An issue has been discovered in GitLab affecting all versions starting from 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2. 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.

GitLab has remediated an issue in GitLab EE affecting all versions from 13.2 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to disclose sensitive information from private projects by executing specifically crafted GraphQL queries.

An issue was discovered in GitLab CE/EE affecting all versions starting from 16.4 prior to 17.5.5, starting from 17.6 prior to 17.6.3, and starting from 17.7 prior to 17.7.1. When a user is created via the SAML provider, the external groups setting overrides the external provider configuration. As a result, the user may not be marked as external thereby giving those users access to internal projects or groups.

An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9. It has Incorrect Access Control. Unprivileged members of a project are able to post comments on confidential issues through an authorization issue in the note endpoint.

An issue was discovered in GitLab Community and Enterprise Edition 8.9 through 11.11. Wiki Pages contained a lack of input validation which resulted in a persistent XSS vulnerability.

An authorization issue affecting GitLab EE affecting all versions from 14.7 prior to 16.3.6, 16.4 prior to 16.4.2, and 16.5 prior to 16.5.1, allowed a user to run jobs in protected environments, bypassing any required approvals.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 6.3 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to cause a Denial of Service condition by sending crafted API calls with large content parameters.

An issue has been discovered in GitLab EE that allows for cross-site-scripting attack and content security policy bypass in a user's browser under specific conditions, affecting all versions from 16.6 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.14. A path traversal is found in LFS Upload that allows attacker to overwrite certain specific paths on the server. Affected versions are: >=8.14, <13.3.9,>=13.4, <13.4.5,>=13.5, <13.5.2.

An issue was discovered in GitLab Community and Enterprise Edition 11.8.x before 11.8.10, 11.9.x before 11.9.11, and 11.10.x before 11.10.3. It allows Information Disclosure. A small number of GitLab API endpoints would disclose project information when using a read_user scoped token.