@modelcontextprotocol/sdk vulnerabilities

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CVE-IDSeverityPackage summary
GHSA-F897-62HF-6GXQHigh@modelcontextprotocol/sdk: MCP TypeScript SDK: HTTP server transports and handlers did not limit request body size or JSON-RPC batch lengthCVE-2026-111768High@modelcontextprotocol/sdk: MCP TypeScript SDK: One HTTP request within the default size limit could exhaust server memory during validationCVE-2026-111771Medium@modelcontextprotocol/sdk: MCP TypeScript SDK: Server bearer authentication accepted tokens issued for another serviceCVE-2026-111767High@modelcontextprotocol/sdk: MCP TypeScript SDK: Experimental tasks were not tied to the session that created themCVE-2026-111769Medium@modelcontextprotocol/sdk: MCP TypeScript client SDK: HTTP client transports and OAuth requests followed cross-origin redirects and re-sent custom headers and request…CVE-2026-104850High@modelcontextprotocol/sdk: MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP serverCVE-2026-25536High@modelcontextprotocol/sdk: @modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuseCVE-2026-0621High@modelcontextprotocol/sdk: Anthropic's MCP TypeScript SDK has a ReDoS vulnerabilityCVE-2025-66414High@modelcontextprotocol/sdk: Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

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