Vulnerability Intelligence Report
Payload: Improper access control for MCP API keys
CVE-2026-105806
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.
No Active Exploit Signals
CVSS Base Score
8.6
HIGH
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-862 ↗CWE-862: Missing Authorization
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| payloadcms | payload | >= 3.61.0, < 3.88.0 (affected) |
| @payloadcms | plugin-mcp | >= 3.61.0, < 3.88.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-10-05T20:37:19 |
| Published | 2026-10-06T15:35:17 |
| Last Updated | 2026-10-06T17:39:44 |
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