medium5.4
CVE-2026-84207
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 service…
Impact
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
| Product | Affected versions |
|---|---|
| Heym | before 0.0.98 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/heymrun/heym
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_trigger_service.py
- https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_utils.py
- https://github.com/heymrun/heym/commit/540aade7c7495295062f32f4dfd0d6805f066f0c
- https://github.com/heymrun/heym/releases/tag/v0.0.98
- https://github.com/heymrun/heym/security/advisories/GHSA-mqw6-g845-w596
- https://www.vulncheck.com/advisories/heym-before-0.0.98-ssrf-via-websocket-endpoints