CVE-2021-31909: JetBrains TeamCity

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

In JetBrains TeamCity before 2020.2.3, argument injection leading to remote code execution was possible.

Affected products

• JetBrains TeamCity: before 2020.2.3 (fixed in 2020.2.3)

Published 2021-05-11. Last modified 2026-06-17.