GHSA-mr6f-h57v-rpj5LowCVSS 3.7

Improper Validation of Query Parameters in Auth0 Next.js SDK

Published
December 10, 2025
Last Modified
December 11, 2025

🔗 CVE IDs covered (1)

CVE-2025-67716 →

📋 Description

Description

An input-validation flaw in the returnTo parameter in the Auth0 Next.js SDK could allow attackers to inject unintended OAuth query parameters into the Auth0 authorization request. Successful exploitation may result in tokens being issued with unintended parameters

Am I Affected?

You are affected if you meet the following preconditions:

  • Applications using the auth0/nextjs-auth0 SDK version prior to 4.13.0

Affected product and versions

Auth0/nextjs-auth0 versions >= 4.9.0 and < 4.13.0

Resolution

Upgrade Auth0/nextjs-auth0 version to v4.13.0

Acknowledgements

Okta would like to thank Joshua Rogers (MegaManSec) for their discovery and responsible disclosure.

🎯 Affected products1

  • npm/@auth0/nextjs-auth0:>= 4.9.0, < 4.13.0

🔗 References (4)