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@modelcontextprotocol/sdk

6 known vulnerabilities (6 high), with the versions each affects and the releases that fix them.

Latest release
1.32.2 (Oct 23, 2026): no advisory affects it
Newest unaffected release
1.32.2 (Oct 23, 2026), the latest release
Advisories
6 · 6 high
Weekly downloads
87M
Dependents
85.3K
Releases
84 since 0.4.0 (Nov 11, 2024)
Registry
npm
Releases read
Nov 8, 2026

Version timeline

Every release cve.now has on record, lowest version on the left; each bar is a run of versions an advisory affects.

Advisories 6

  • MCP TypeScript SDK: HTTP server transports and handlers did not limit request body size or JSON-RPC batch length

    Affected: from 1.10.0, fixed in 1.30.1.

    Fixed in 1.30.1 (released Sep 23, 2026, 34 days before disclosure).

    The latest release, 1.32.2, is not affected.

    47% of @modelcontextprotocol/sdk downloads last week were affected versions (42.5M).

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

    Affected: from 1.24.0, fixed in 1.32.0.

    Fixed in 1.32.0 (released Oct 2, 2026, 18 days before disclosure).

    The latest release, 1.32.2, is not affected.

    39% of @modelcontextprotocol/sdk downloads last week were affected versions (35.6M).

  • MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server

    Affected: from 1.12.0, fixed in 1.31.0.

    Fixed in 1.31.0 (released Sep 28, 2026, 8 days before disclosure).

    The latest release, 1.32.2, is not affected.

    47% of @modelcontextprotocol/sdk downloads last week were affected versions (43.1M).

  • @modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

    Affected: from 1.10.0, fixed in 1.26.0.

    Fixed in 1.26.0 (released Feb 4, 2026, the day of disclosure).

    The latest release, 1.32.2, is not affected.

    13% of @modelcontextprotocol/sdk downloads last week were affected versions (11.6M).

  • MCP TypeScript SDK UriTemplate Exploded Array Pattern ReDoS

    Affected: from 1.3.0, fixed in 1.25.2.

    Fixed in 1.25.2 (released Jan 7, 2026, 2 days after disclosure).

    The latest release, 1.32.2, is not affected.

    13% of @modelcontextprotocol/sdk downloads last week were affected versions (11.4M).

  • DNS Rebinding Protection Disabled by Default in Model Context Protocol TypeScript SDK for Servers Running on Localhost

    Affected: fixed in 1.24.0.

    Fixed in 1.24.0 (released Dec 2, 2025, the day of disclosure).

    The latest release, 1.32.2, is not affected.

    13% of @modelcontextprotocol/sdk downloads last week were affected versions (11.8M).