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FastMCP OpenAPI Provider has an SSRF & Path Traversal Vulnerability

🗓️ 31 Mar 2026 22:53:21Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

OpenAPIProvider substitutes path params without encoding, enabling authenticated SSRF via path traversal.

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10 Apr 2026 19:34Current
6Medium risk
Vulners AI Score6
CVSS 3.110
CVSS 410
EPSS0.00063
SSVC
5