Is CVE-2026-63077 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-63077?

CVE-2026-63077 has a CVSS v3 severity of CRITICAL (9.8).

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Description

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