CVE-2021-31913: JetBrains TeamCity

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

In JetBrains TeamCity before 2020.2.3, insufficient checks of the redirect_uri were made during GitHub SSO token exchange.

Affected products

• JetBrains TeamCity: before 2020.2.3 (fixed in 2020.2.3)

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