CVE-2025-6769: 
GitLab vulnerability analysis and mitigation

A security 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 an impact score of 1.4 and exploitability score of 2.8. The attack vector is Network-based (AV:N) with Low attack complexity (AC:L), requiring Low privileges (PR:L) and No user interaction (UI:N). The scope is Unchanged (S:U) with Low impact on confidentiality (C:L) and No impact on integrity (I:N) or availability (A:N). The vulnerability is classified under CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere) (NVD).

The primary impact of this vulnerability is the unauthorized access to administrator-only maintenance notes, which could potentially expose sensitive system information to authenticated users who should not have access to such data (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 is already running the patched version, and GitLab Dedicated customers do not need to take any action (GitLab Release).