CVE-2026-105846: @payloadcms Next

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.

Affected products

• @payloadcms Next: from 3.31.0, before 3.88.0 (fixed in 3.88.0); from 4.0.0-canary.0, before 4.0.0-canary.27 (fixed in 4.0.0-canary.27)
• Payloadcms Payload: from 3.40.0, before 3.88.0 (fixed in 3.88.0); from 4.0.0-canary.0, before 4.0.0-canary.27 (fixed in 4.0.0-canary.27)

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