An issue was discovered in JetBrains TeamCity 2018.2.4. The TeamCity server was not using some security-related HTTP headers. The issue was fixed in TeamCity 2019.1.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)