Vulnerability in JetBrains TeamCity

[ Why it matters ]Priority signals

• Critical severity: CVSS 10.0

[ Description ]Official description

In JetBrains TeamCity before 2026.1.3 2025.11.7 kotlin DSL sandbox escape leading to RCE on the server was possible

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund6 Oct 2026WID-SEC-2026-3774

  JetBrains TeamCity: Multiple vulnerabilities Translated from German

  CVE-2026-106218CVE-2026-106219

[ References ]References

• www.jetbrains.com/privacy-security/issues-fixedVendor Advisory