CVE-2026-106100: Payloadcms Payload

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Payload is a free and open source headless content management system. In @payloadcms/db-mongodb versions before 3.87.0 and canary versions before 4.0.0-canary.20, an authenticated user who can update a document can modify fields that field-level write access control does not permit that user to change. The Postgres and SQLite adapters are not affected. This issue is fixed in versions 3.87.0 and 4.0.0-canary.20.

Affected products

• Payloadcms Payload: before 3.87.0 (fixed in 3.87.0); from 4.0.0-canary.0, before 4.0.0-canary.20 (fixed in 4.0.0-canary.20)

Published 2026-10-06. Last modified 2026-10-06.