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OpenAdvisories
High · 8.6 CVE-2026-105806 EUVD-2026-93469GHSA-2q76-m6w6-qgc6

Payload: Improper access control for MCP API keys

Published Oct 6, 2026 · Updated Oct 6, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
payloadcms payload >= 3.61.0, < 3.88.0 —
@payloadcms plugin-mcp >= 3.61.0, < 3.88.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @payloadcms/plugin-mcp >= 3.61.0, < 3.88.0 3.88.0 GHSA-2q76-m6w6-qgc6

References