CVE-2026-84207: fallo de gravedad media en heymrun heym
Heym before 0.0.98 SSRF via WebSocket endpoints
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.3%
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
Productos afectados
heymrun · heymCVEs relacionadas — heymrun heym
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-100864HIGHheym before 0.0.91 Remote Code Execution via Expression EngineEPSS 0.9%CVE-2026-55376HIGHheym Python Tool Sandbox EscapeEPSS 0.5%CVE-2026-100865HIGHHeym before 0.0.53 Remote Code Execution via eval() Sandbox EscapeEPSS 0.4%CVE-2026-101050HIGHHeym before 0.0.53 Authentication Bypass via Telegram WebhookEPSS 0.4%CVE-2026-101049HIGHHeym before 0.0.53 Slack Webhook Signature Verification BypassEPSS 0.4%CVE-2026-45225HIGHHeym < 0.0.21 Path Traversal File Upload via upload_file()EPSS 0.4%
Referencias
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