An issue has been discovered in GitLab CE/EE affecting all versions from 2.1.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. A lack of input validation in HTTP responses could allow an authenticated user to cause denial of service.
CVE ID: CVE-2025-5996
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor: GitLab
Product: GitLab
EPSS Score: 0.08% (probability of being exploited)
EPSS Percentile: 23.62% (scored less or equal to compared to others)
EPSS Date: 2025-06-19 (when was this score calculated)