Findings

CVE-2026-105861

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, 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.

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, 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.

  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, 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

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

Sources

  • CVE.orgCVE-2026-105861

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2026-105861

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDCVE-2026-105861

    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

    nvd.nist.gov

References

CVE-2026-105861 · ZeroDay Findings