CVE-2026-84207: Server-Side Request Forgery (SSRF) in heymrun heym
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.
CVE-2026-84207: Server-Side Request Forgery (SSRF) in heymrun heym
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.
CVSS v4.0
Score 5.3medium
Affected software
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Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-01T11:03:27.973Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a96f4d9acd9273b49e7627d
Added to database: 09/01/2026, 15:52:57 UTC
Last updated: 09/02/2026, 02:40:17 UTC
Views: 13
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