CVE-2026-25536 - @modelcontextprotocol/sdk has cross-client data leak via shared server/transport...

CVE-2026-25536 - @modelcontextprotocol/sdk has cross-client data leak via shared server/transport...

CVE ID : CVE-2026-25536 Published : Feb. 4, 2026, 9:29 p.m. | 15 minutes ago 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. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Published
Feb. 4, 2026