Description

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, most commonly in stateless StreamableHTTPServerTransport deployments. This issue has been patched in version 1.26.0.

INFO

Published Date :

2026-02-04T21:29:38.276Z

Last Modified :

2026-02-05T20:58:17.103Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25536 vulnerability.

Vendors Products
Lfprojects
  • Mcp Typescript Sdk
Modelcontextprotocol
  • Typescript-sdk
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25536.

URL Resource
https://github.com/modelcontextprotocol/typescript-sdk/issues/204 cve-icon cve-icon cve-icon
https://github.com/modelcontextprotocol/typescript-sdk/issues/243 cve-icon cve-icon cve-icon
https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-345p-7cg4-v4c7 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-25536 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-25536 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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