CVE-2025-6769: 
GitLab vulnerability analysis and mitigation

An information disclosure vulnerability (CVE-2025-6769) was discovered in GitLab CE/EE affecting all versions from 15.1 before 18.1.6, 18.2 before 18.2.6, and 18.3 before 18.3.2. The vulnerability was disclosed on September 12, 2025, and allows authenticated users to view administrator-only maintenance notes by accessing runner details through specific interfaces (GitLab Release).

The vulnerability has been assigned a CVSS v3.1 base score of 4.3 (Medium) with the following vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N. This indicates that the vulnerability requires network access, has low attack complexity, requires low privileges, needs no user interaction, has unchanged scope, and only impacts confidentiality at a low level with no impact on integrity or availability (GitLab Release).

The vulnerability allows authenticated users to access administrator-only maintenance notes through runner details interfaces, resulting in unauthorized access to sensitive system information. The impact is limited to confidentiality breaches of maintenance-related information (GitLab Release).

GitLab has released patches to address this vulnerability in versions 18.1.6, 18.2.6, and 18.3.2. Users are strongly recommended to upgrade to these patched versions immediately. GitLab.com has already been updated with the security fix, and GitLab Dedicated customers do not need to take any action (GitLab Release).