JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

Public source report. This item is not matched to your stack and does not establish whether you are affected.

• NewsExploited · CISA KEVKnown ransomware useJetBrains · TeamCity

  JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

  CVE-2026-63077

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

  CISA's required action · due 8 Aug 2026 for U.S. federal civilian agencies

  Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

  Cited by CISA: blog.jetbrains.com · jetbrains.com · nvd.nist.gov

  Added to KEV 5 Aug 2026 · Source checked 4 Nov 2026, 16:30 UTC · CISA KEV entry

  Loading voting…