RCE in Jetbrains Teamcity

CVE-2026-65906

In JetBrains TeamCity before 2026.1.2, 2025.11.6 сode execution via Kotlin DSL sandbox escape was possible

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jetbrains Teamcity — versions 0

Weakness classification (CWE)

CWE-94 — Code Injection

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-65906?: CVE-2026-65906 is a high-severity vulnerability in Jetbrains Teamcity, classified under Code Injection. CVSS score: 8.8/10. Published 2026-07-23.
How severe is CVE-2026-65906?: High severity. CVSS v3 base score is 8.8 out of 10.