Modelcontextprotocol

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    Products: 15
    Vulnerabilities: 41
    Known Exploited: 0
    1
    Critical Level Threats
    21
    High Level Threats
    14
    Medium Level Threats
    1
    Low Level Threats

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    Vulnerabilities

    CVE-2026-111770

    Model Context Protocol TypeScript SDK: Shared transport or server instances delivered one HTTP client's messages to another

    Last Modified: Nov 05, 2026
    Published: Nov 05, 2026

    CVE-2026-116686

    Model Context Protocol Python SDK: Client fetched server-chosen $ref URLs while validating tool results against output schemas

    Last Modified: Oct 28, 2026
    Published: Oct 27, 2026

    CVE-2026-116685

    Model Context Protocol Python SDK: HTTP client transports followed cross-origin redirects carrying custom headers and bodies

    Last Modified: Oct 30, 2026
    Published: Oct 27, 2026

    CVE-2026-116684

    Model Context Protocol Python SDK: Server bearer-token authentication accepts tokens issued for a different resource server

    Last Modified: Nov 02, 2026
    Published: Oct 27, 2026

    CVE-2026-111767

    MCP TypeScript SDK: Experimental tasks were not tied to the session that created them

    Last Modified: Oct 20, 2026
    Published: Oct 20, 2026
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    Modelcontextprotocol Vulnerabilities & Security CVEs | CVE-DB