{"cvss":9.8,"datePublished":"2026-08-05T00:00:00Z","dateUpdated":"2026-08-05T00:00:00Z","description":"JetBrains TeamCity contains a deserialization of untrusted data vulnerability that could allow unauthenticated remote code execution via the agent polling protocol.","dueDate":"2026-08-08T00:00:00Z","id":"CVE-2026-63077","kev_catalogs":["vulncheck"],"knownRansomwareCampaignUse":"Known","product":"TeamCity","requiredAction":"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.","severity":"CRITICAL","source":"vulncheck_kev","title":"JetBrains TeamCity Deserialization of Untrusted Data Vulnerability","vendor":"JetBrains"}