Kotlin DSL Sandbox Escape in JetBrains TeamCity
CVE-2026-106218

8.8HIGH

Key Information:

Vendor

Jetbrains
Status
Teamcity
Vendor
CVE Published:
6 October 2026

What is CVE-2026-106218?

A vulnerability exists in JetBrains TeamCity prior to version 2026.1.3 and 2025.11.7, allowing for a Kotlin DSL sandbox escape that could lead to remote code execution on the server. This flaw could potentially enable an attacker to execute arbitrary commands on the server, posing significant security risks.

Affected Version(s)

TeamCity 0 < 2026.1.3 2025.11.7

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

.