Missing Authorization Affecting @payloadcms/plugin-mcp package, versions >=3.61.0 <3.88.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Missing Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JS-PAYLOADCMSPLUGINMCP-20826483
- published11 Oct 2026
- disclosed6 Oct 2026
- creditpavelkohout396
Introduced: 6 Oct 2026
NewCVE-2026-105806 (opens in a new tab)How to fix?
Upgrade @payloadcms/plugin-mcp to version 3.88.0 or higher.
Overview
@payloadcms/plugin-mcp is a MCP (Model Context Protocol) capabilities with Payload
Affected versions of this package are vulnerable to Missing Authorization via the MCP API Keys collection in createApiKeysCollection.ts, which prior to the fix applied no access controls to the generated payload-mcp-api-keys collection. An authenticated user can create API keys bound to any other user, read or modify those keys, and thereby impersonate arbitrary users within the application.