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Payload: Improper access control for MCP API keys

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-105806

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-105806

payload

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

plugin-mcp

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "payloadcms",
    "product": "payload",
    "versions": [
      {
        "status": "affected",
        "version": ">= 3.61.0, < 3.88.0"
      }
    ]
  },
  {
    "vendor": "@payloadcms",
    "product": "plugin-mcp",
    "versions": [
      {
        "status": "affected",
        "version": ">= 3.61.0, < 3.88.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-105806

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#9471 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement