TeamCity RCE via Kotlin DSL sandbox escape before 2026.1.2/2025.11.6
CVE-2026-65906 Published on July 23, 2026

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

NVD

Vulnerability Analysis

CVE-2026-65906 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Code Injection Vulnerability?

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

CVE-2026-65906 has been classified to as a Code Injection vulnerability or weakness.


Products Associated with CVE-2026-65906

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Affected Versions

JetBrains TeamCity: