CVE-2026-65906
Awaiting Analysis Awaiting Analysis - Queue

Code Execution via Kotlin DSL Sandbox Escape in JetBrains TeamCity

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: JetBrains s.r.o.

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
CVE-2026-65906
EUVD
EUVD-2026-48251

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains teamcity to 2026.1.2 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-94 The product 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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability allows code execution in JetBrains TeamCity versions before 2026.1.2 and 2025.11.6 due to a Kotlin DSL sandbox escape. It enables unauthorized users to run arbitrary code on the affected system.

Impact Analysis

An attacker could exploit this to gain control over the TeamCity server, steal sensitive data, or disrupt operations. The high CVSS score (8.8) indicates severe impact, including confidentiality, integrity, and availability breaches.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements. Organizations may face legal penalties, data breach notifications, and reputational damage.

Mitigation Strategies

Update JetBrains TeamCity to version 2026.1.2 or later to address the code execution vulnerability via Kotlin DSL sandbox escape.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-65906. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart