CVE-2026-65906

JetBrains TeamCity versions prior to 2026.1.2 and 2025.11.6 are vulnerable to a code execution flaw that allows attackers to escape the Kotlin DSL sandbox, potentially leading to unauthorized execution of arbitrary code. Organizations using affected versions should prioritize patching to mitigate the risk of exploitation, as the high severity rating indicates significant potential impact on system integrity and security.