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OpenAdvisories
Medium · 6.1 CVE-2026-105846 EUVD-2026-93488GHSA-w84c-53h3-mc2g

Payload: Untrusted redirect URL parameter exploit

Published Oct 6, 2026 · Updated Oct 6, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
payloadcms payload >= 3.40.0, < 3.88.0, >= 4.0.0-canary.0, < 4.0.0-canary.27 —
@payloadcms next >= 3.31.0, < 3.88.0, >= 4.0.0-canary.0, < 4.0.0-canary.27 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @payloadcms/next >= 3.31.0, < 3.88.0 3.88.0 GHSA-w84c-53h3-mc2g
npm @payloadcms/next >= 4.0.0-canary.0, < 4.0.0-canary.27 4.0.0-canary.27 GHSA-w84c-53h3-mc2g
npm payload >= 3.40.0, < 3.88.0 3.88.0 GHSA-w84c-53h3-mc2g
npm payload >= 4.0.0-canary.0, < 4.0.0-canary.27 4.0.0-canary.27 GHSA-w84c-53h3-mc2g

References