CVE-2026-105859

Critical

Description

Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, an attacker can submit a request to a specific update endpoint that modifies collection documents without enforcing collection or field-level access control when orderable is enabled on a collection or join field. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

SeverityCritical

CVSS9.8

Exploit probability—

ProductPayload

PublishedOct 6, 2026

First seenOct 6, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key CWE-862Missing authorization

How to fix

Update

payloadcms payload3.90.0 or later
payload3.90.0, 4.0.0-canary.34 or later

Affected products

Product	Affected versions	Fixed in
payloadcms payload	v < 3.90.0, 4.0.0	3.90.0
payloadnpm	v < 3.90.0, 4.0.0-canary.0 ≤ v < 4.0.0-canary.34	3.90.0, 4.0.0-canary.34

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