typescript-sdk vulnerabilities

6 known vulnerabilities in typescript-sdk from Modelcontextprotocol. 6 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.7 High severity

  typescript-sdk: Concurrent Execution using Shared Resource with Improper Synchronization

  CVE-2026-111770Nov 5, 2026Modelcontextprotocol

  The Model Context Protocol TypeScript SDK provides TypeScript client and server implementations of the Model Context Protocol. From 2.0.0 until 2.3.0 in @modelcontextprotocol/server, applications that shared one stateless HTTP transport or one McpServer or Ser

• 7.5 High severity

  typescript-sdk: Allocation of Resources Without Limits or Throttling

  CVE-2026-111768Nov 5, 2026Modelcontextprotocol

  The Model Context Protocol TypeScript SDK provides TypeScript client and server implementations of the Model Context Protocol. From 1.3.0 until 1.32.0 in @modelcontextprotocol/sdk and from 2.0.0 until 2.3.0 in @modelcontextprotocol/server, HTTP servers did not

• 8.6 High severity

  typescript-sdk: Authorization Bypass Through User-Controlled Key

  CVE-2026-111767Oct 20, 2026Modelcontextprotocol

  MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.24.0 to before version 1.32.0, the experimental tasks feature (taskStore) did not check which session created a task. Clients sharing one InMemoryT

• 7.5 High severity

  typescript-sdk: Insufficient Verification of Data Authenticity

  CVE-2026-104850Oct 6, 2026Modelcontextprotocol

  MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Starting in version 1.12.0 and prior to versions 1.31.0 and 2.2.0, the SDK's OAuth client support let the MCP server a client connected to decide which authorizat

• 7.1 High severity

  typescript-sdk: Concurrent Execution using Shared Resource with Improper Synchronization

  CVE-2026-25536Feb 4, 2026Modelcontextprotocol

  MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. From version 1.10.0 to 1.25.3, cross-client response data leak when a single McpServer/Server and transport instance is reused across multiple client connections,

• 8.1 High severity

  typescript-sdk: Initialization of a Resource with an Insecure Default

  CVE-2025-66414Dec 2, 2025Modelcontextprotocol

  MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Prior to 1.24.0, The Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MC