JetBrains Patches Critical Unauthenticated RCE Vulnerability in TeamCity On-Premises

JetBrains has released a fix for a critical unauthenticated remote code execution (RCE) vulnerability (CVE-2026-63077) impacting its TeamCity On-Premises continuous integration/continuous delivery (CI/CD) server solution. Administrators are strongly advised to upgrade self-hosted servers immediately or apply the provided security patch plugin to mitigate potential risks.