CVE-2026-111767 — MCP TypeScript SDK: Experimental tasks were not tied to the session that created them
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 (t…
Published: 2026-10-20 · CVSS: 8.6 · CVSS 3.1
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 InMemoryTaskStore could list, read and cancel each other's tasks. This issue has been patched in version 1.32.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7