An input validation problem was discovered in the GitHub service integration which could result in an attacker being able to make arbitrary POST requests in a GitLab instance's internal network. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.
Severity
CVSS 3.1
3.5 low
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS
1.0% chance of exploitation in the next 30 days; higher than 62% of CVEs (scores of 2026-10-31)