High severity8.6NVD Advisory· Published Oct 6, 2026

CVE-2026-105806

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

Payloadcms/Payloadllm-fuzzy
Range: >=3.61.0 <3.88.0

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-2q76-m6w6-qgc6ghsaADVISORY
github.com/payloadcms/payload/commit/025581d8c5ed836039ad85397288a30f0d3c11c1nvd
github.com/payloadcms/payload/releases/tag/v3.88.0nvd
github.com/payloadcms/payload/security/advisories/GHSA-2q76-m6w6-qgc6nvd

News mentions

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cvss	0.455
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000