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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-105858

Payload: Remote Code Execution through first-register

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, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

Affected products

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

payloadcms payload

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

References