HIGH

CVE-2026-111767

CVSS v3

8.6

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-111767 yet.

Full record on NVD

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Published: 2026-10-20
Last Modified: 2026-10-20

Frequently asked questions

What is CVE-2026-111767?

Is CVE-2026-111767 actively exploited?

Active exploitation of CVE-2026-111767 has not been confirmed.

What is the CVSS score for CVE-2026-111767?

CVE-2026-111767 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

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