Heym before 0.0.98 SSRF via WebSocket endpoints
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
heymrun · heymReferences
https://github.com/heymrun/heymhttps://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_trigger_service.pyhttps://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_utils.pyhttps://github.com/heymrun/heym/commit/540aade7c7495295062f32f4dfd0d6805f066f0chttps://github.com/heymrun/heym/releases/tag/v0.0.98https://github.com/heymrun/heym/security/advisories/GHSA-mqw6-g845-w596https://www.vulncheck.com/advisories/heym-before-0.0.98-ssrf-via-websocket-endpoints