Bug 2558780

Summary:	CVE-2026-111767 oh-my-posh: @modelcontextprotocol/sdk: Unauthorized cross-session task access via taskStore [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Avinash Hanwate <ahanwate>
Component:	oh-my-posh	Assignee:	solomoncyj
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	rawhide	CC:	go-sig, solomoncyj
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["f8b40845-7239-411a-be5e-56c37cd558f9"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2556388

Description Avinash Hanwate 2026-10-22 07:44:58 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.