CVE-2026-84207 | BDVDB-2026-367144 Detail
heymrunheym
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.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-918 Server-Side Request Forgery (SSRF)
References#
- https://github.com/heymrun/heym
- https://github.com/heymrun/heym/security/advisories/GHSA-mqw6-g845-w596
- https://github.com/heymrun/heym/commit/540aade7c7495295062f32f4dfd0d6805f066f0c
- https://github.com/heymrun/heym/releases/tag/v0.0.98
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_utils.py
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_trigger_service.py
- https://www.vulncheck.com/advisories/heym-before-0.0.98-ssrf-via-websocket-endpoints
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.