CVE Watch24 de out. de 2026

CVE-2026-63077

JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

CVSS

9.8

Crítica

EPSS

94.9%

p100

KEV

SIM

5 de ago. de 2026

Exploit Today

0-100

Publicado: 27 de jul. de 2026 · Última mod.: 24 de out. de 2026 · CWE-502

EPSS · 30d

89.6%EPSS · 30 dias94.9%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

JetBrains / TeamCity

Vulnerabilidade

JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

Adicionado ao KEV

5 de ago. de 2026

Corrigir até

8 de ago. de 2026

Uso conhecido em ransomware

Sim

Descrição resumida

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

Ação necessária

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.

Notas

https://blog.jetbrains.com/teamcity/2026/07/cve-2026-63077/; https://www.jetbrains.com/privacy-security/issues-fixed/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-63077

Descrição técnica

In JetBrains TeamCity before 2026.1.3, 2025.11.7 unauthenticated remote code execution was possible via the agent polling protocol

Referências oficiais

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