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GHSA-RWRF-2PQF-9J8J Model Context Protocol Python SDK: Client fetched server-chosen $ref URLs while validating tool results against output schemas

🗓️ 27 Oct 2026 21:05:29Reported by GoogleType 
osv_ghsa
 osv_ghsa
🔗 osv.dev👁 8 Views

Model Context Protocol Python SDK client fetches URLs and reads files via tool output schemas.

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27 Oct 2026 21:15Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
8