Findings

CVE-2026-105863

Payload is a free and open source headless content management system.

Published Oct 6, 2026 · updated Oct 15, 2026 · payloadcms payload

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.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 6, 2026 · NIST NVD

    Detected

    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.

  2. Oct 15, 2026 · NIST NVD

    Updated

    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

  • cpe payloadcms/payloadversion unspecified
  • cpe payloadcms/payload4.0.0

Sources

  • CVE.orgCVE-2026-105863

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-105863

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDCVE-2026-105863

    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

    nvd.nist.gov

References

CVE-2026-105863 · ZeroDay Findings