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PYSEC-2026-2474 FastMCP OAuth Proxy token reuse across MCP servers

🗓️ 13 Jul 2026 14:36:42Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

While testing the OAuth Proxy implementation, it was noticed that the server does not properly respect the resource parameter submitted by the client in the authorization and token request. Instead of issuing the token explicitly for this MCP serv...

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13 Jul 2026 16:31Current
6.1Medium risk
Vulners AI Score6.1
CVSS 47.4
EPSS0.00358
2