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CVE-2026-59951 MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion

🗓️ 14 Oct 2026 16:22:31Reported by GoogleType 
osv-cve
 osv-cve
🔗 osv.dev👁 2 Views

Unbounded session accumulation in MCP Python SDK StreamableHTTP transport enables resource exhaustion.

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15 Oct 2026 02:47Current
5.8Medium risk
Vulners AI Score5.8
CVSS 46.9
2