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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-105863

Payload authentication token field handling issue

Description

Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, a custom field option that maps a field to a reserved authentication claim name can place unintended values in the authentication token issued at login. This issue is fixed in version 3.90.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

payloadcms payload

  • >= 3.0.0, < 3.90.0affected
  • >= 4.0.0-canary.0, < 4.0.0-canary.34affected

References