GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.4.5, 18.5 before 18.5.3, and 18.6 before 18.6.1 that could have allowed an unauthenticated user to cause a Denial of Service condition by sending specifically crafted requests containing malicious JSON payloads.
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an unauthenticated attacker to cause a denial of service condition by sending specially crafted payloads.
An issue has been discovered in GitLab CE/EE affecting all versions from 17.7 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Improper rendering of certain file types leads to cross-site scripting.
An improper access control vulnerability in GitLab CE/EE affecting all versions from 17.4 prior to 17.8.6, 17.9 prior to 17.9.3, and 17.10 prior to 17.10.1 allows a user who was an instance admin before but has since been downgraded to a regular user to continue to maintain elevated privileges to groups and projects.
An issue has been discovered in Gitlab EE/CE affecting all versions from 13.5.0 before 17.8.6, 17.9 before 17.9.3, and 17.10 before 17.10.1. Certain error messages could allow Cross-Site Scripting attacks (XSS). This is a high severity issue (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N, 8.7). It is now mitigated in the latest release and is assigned CVE-2025-2255.
An issue has been discovered in GitLab CE/EE affecting all versions from 12.0 before 17.9.8, 17.10 before 17.10.6, and 17.11 before 17.11.2. Under certain conditions users could bypass IP access restrictions and view sensitive information.
An issue has been discovered in GitLab CE/EE affecting all versions starting from 17.1 prior to 17.9.8, from 17.10 prior to 17.10.6, and from 17.11 prior to 17.11.2. It was possible to cause a DoS condition via GitHub import requests using a malicious crafted payload.
An issue has been discovered in GitLab EE/CE that could allow an attacker to track users' browsing activities, potentially leading to full account take-over, 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 affecting service availability via issue preview in GitLab CE/EE affecting all versions from 16.7 before 17.9.7, 17.10 before 17.10.5, and 17.11 before 17.11.1.
A Denial of Service (DoS) issue has been discovered in GitLab CE/EE affecting all up to 17.8.7, 17.9 prior to 17.9.6 and 17.10 prior to 17.10.4 A denial of service could occur upon injecting oversized payloads into CI pipeline exports.