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

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-111767

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-111767

typescript-sdk

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "modelcontextprotocol",
    "product": "typescript-sdk",
    "versions": [
      {
        "status": "affected",
        "version": ">= 1.24.0, < 1.32.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-111767

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#42522 · Revision 1
Added to Heist Feed
Publisher date
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