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[ CVE-2026-105846 · Published 6 Oct 2026 ]

Payload: Untrusted redirect URL parameter exploit

CVSS 6.1 EPSS <1%Fix available

[ Description ]Official description

Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.

[ Fixes ]Fixes and patches

  • payload 3.88.0Fixed version · GitHub Advisories · npm package payload: upgrade to 3.88.0 or later (affected >= 3.40.0, < 3.88.0)
  • payload 4.0.0-canary.27Fixed version · GitHub Advisories · npm package payload: upgrade to 4.0.0-canary.27 or later (affected >= 4.0.0-canary.0, < 4.0.0-canary.27)
  • @payloadcms/next 3.88.0Fixed version · GitHub Advisories · npm package @payloadcms/next: upgrade to 3.88.0 or later (affected >= 3.31.0, < 3.88.0)
  • @payloadcms/next 4.0.0-canary.27Fixed version · GitHub Advisories · npm package @payloadcms/next: upgrade to 4.0.0-canary.27 or later (affected >= 4.0.0-canary.0, < 4.0.0-canary.27)
  • Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
  • Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ Packages ]Affected open-source packages

  • payload npmAffected >= 3.40.0, < 3.88.0 · fixed in 3.88.0 · GHSA-w84c-53h3-mc2g
  • payload npmAffected >= 4.0.0-canary.0, < 4.0.0-canary.27 · fixed in 4.0.0-canary.27 · GHSA-w84c-53h3-mc2g
  • @payloadcms/next npmAffected >= 3.31.0, < 3.88.0 · fixed in 3.88.0 · GHSA-w84c-53h3-mc2g
  • @payloadcms/next npmAffected >= 4.0.0-canary.0, < 4.0.0-canary.27 · fixed in 4.0.0-canary.27 · GHSA-w84c-53h3-mc2g

[ References ]References