CVE-2026-25536

HIGH

7.1

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.17.1

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado2/4/2026

Ultima modificacion3/18/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

lfprojects:mcp_typescript_sdk

Debilidades (CWE)

CWE-362

Referencias

https://github.com/modelcontextprotocol/typescript-sdk/issues/204(security-advisories@github.com)

https://github.com/modelcontextprotocol/typescript-sdk/issues/243(security-advisories@github.com)

https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-345p-7cg4-v4c7(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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