Code Execution Vulnerability in JetBrains TeamCity
CVE-2026-65906

8.8HIGH

Key Information:

Vendor

Jetbrains
Status
Teamcity
Vendor
CVE Published:
23 July 2026

What is CVE-2026-65906?

A serious vulnerability has been identified in JetBrains TeamCity, allowing potential code execution through a sandbox escape in the Kotlin DSL. This flaw impacts versions prior to 2026.1.2 and 2025.11.6, posing risks to secure operations and the integrity of managed projects. Users are advised to update their installations promptly to mitigate any security risks.

Affected Version(s)

TeamCity 0 < 2026.1.2, 2025.11.6

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.