{"cve":"CVE-2026-111767","nvd":{"published":"2026-10-20T19:17:30.847","modified":"2026-10-20T19:53:10.247","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","score":8.6},"cwes":["CWE-639","CWE-862"],"references":["https://github.com/modelcontextprotocol/typescript-sdk/commit/727075b5bbeb77fbea22041b36b72a73042160fa","https://github.com/modelcontextprotocol/typescript-sdk/pull/2925","https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-22jm-h49p-29qw"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-111767","score":0.00345,"percentile":0.2775,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-22jm-h49p-29qw","url":"https://osv.dev/vulnerability/GHSA-22jm-h49p-29qw","summary":"MCP TypeScript SDK: Experimental tasks were not tied to the session that created them","modified":"2026-10-20T18:45:09.486849334Z","packages":[{"ecosystem":"npm","name":"@modelcontextprotocol/sdk","purl":"pkg:npm/%40modelcontextprotocol/sdk","ranges":[">=1.24.0 <1.32.0"],"fixed":["1.32.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}