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GHSA-537J-GQPC-P7FQ n8n Vulnerable to XSS via MCP OAuth client

🗓️ 29 Apr 2026 21:23:04Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 24 Views

Unauthenticated cross-site scripting in n8n via an authorization client; crafted client_name enables script in a toast after consent and revoke.

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