CVE-2026-105806CWE-862broken-access-control

CVE-2026-105806

published October 6, 2026

CVSS
8.6
EPSS
0%
Percentile
15.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.6 · NONE
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00252 · 15.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-06T20:17Z
References (3)
https://github.com/payloadcms/payload/commit/025581d8c5ed836039ad85397288a30f0d3c11c1 · [email protected]https://github.com/payloadcms/payload/releases/tag/v3.88.0 · [email protected]https://github.com/payloadcms/payload/security/advisories/GHSA-2q76-m6w6-qgc6 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 15:35Z
    Payload: Improper access control for MCP API keys
    cvelistv5