CVE-2026-105861: Payloadcms Payload

High severity, CVSS 7.2. EPSS: 0.2% chance of exploitation in the next 30 days.

Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. This issue is fixed in version 3.90.0.

Affected products

• Payloadcms Payload: after 3.0.0, before 3.90.0 (fixed in 3.90.0); after 4.0.0-canary.0, before 4.0.0-canary-34 (fixed in 4.0.0-canary-34)

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