Is CVE-2026-84207 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-84207?

CVE-2026-84207 has a CVSS v3 severity of MEDIUM (5.4).

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CVE-2026-84207

Description

Heym before 0.0.98 fails to apply SSRF egress guards to WebSocket Send and WebSocket Trigger nodes, allowing authenticated users to connect to internal services. Attackers can craft workflow nodes with arbitrary URLs and headers to reach internal services and read responses from the WebSocket Trigger node.