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VULNERABILITIES

CVE-2026-84207 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.
CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/heymrun/heym [email protected]
https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_trigger_service.py [email protected]
https://github.com/heymrun/heym/blob/v0.0.97/backend/app/services/websocket_utils.py [email protected]
https://github.com/heymrun/heym/commit/540aade7c7495295062f32f4dfd0d6805f066f0c [email protected]
https://github.com/heymrun/heym/releases/tag/v0.0.98 [email protected]

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-918Server-Side Request Forgery (SSRF)[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-84207
NVD Published Date:
Sep 1, 2026
NVD Last Modified:
Sep 8, 2026
Source:
[email protected]
CVE-2026-84207 Details - Not Deferred