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[ CVE-2026-105806 · Published 6 Oct 2026 ]

Payload: Improper access control for MCP API keys

CVSS 8.6 EPSS <1%Fix available

[ Description ]Official description

Payload is a free and open source headless content management system. In @payloadcms/plugin-mcp versions from 3.61.0 until 3.88.0, an authenticated user can manage MCP API keys outside the intended account, enabling privilege escalation through account takeover. This issue is fixed in version 3.88.0.

[ Fixes ]Fixes and patches

  • @payloadcms/plugin-mcp 3.88.0Fixed version · GitHub Advisories · npm package @payloadcms/plugin-mcp: upgrade to 3.88.0 or later (affected >= 3.61.0, < 3.88.0)

[ Packages ]Affected open-source packages

  • @payloadcms/plugin-mcp npmAffected >= 3.61.0, < 3.88.0 · fixed in 3.88.0 · GHSA-2q76-m6w6-qgc6

[ References ]References