CVE-2026-54309: n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions
HIGH
CVSS 10.0
Exploit Available
Published: June 16, 2026 | Last Modified: June 16, 2026
Description
n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions
Ghostwire Analysis — What This Means Practically
- Critical CVSS score indicates maximum severity — remote code execution, authentication bypass, or complete system compromise is likely possible.
- Exploit code is reported to be available, increasing the likelihood of active exploitation.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
References