JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

What happened

JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol.

Affected versions

TeamCity: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

• Review the original advisory and validate affected versions.
• Apply vendor-provided updates or mitigations when available.