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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| heymrun | heym | < 0.0.98 | 0.0.98 |
References
- https://github.com/heymrun/heym product
- GitHub Security Advisory (GHSA-mqw6-g845-w596) vendor-advisory
- Patch Commit patch
- Heym v0.0.98 Release Notes release-notes
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_utils.py technical-description
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_trigger_service.py technical-description
- VulnCheck Advisory: Heym before 0.0.98 SSRF via WebSocket endpoints third-party-advisory