The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which 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. This issue is fixed in version 4.13.0.
History

Thu, 11 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 11 Dec 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Auth0
Auth0 nextjs-auth0
Vendors & Products Auth0
Auth0 nextjs-auth0

Thu, 11 Dec 2025 00:45:00 +0000

Type Values Removed Values Added
Description The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which 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. This issue is fixed in version 4.13.0.
Title Auth0 Next.js SDK has Improper Validation of Query Parameters
Weaknesses CWE-184
References
Metrics cvssV3_1

{'score': 5.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-12-11T00:21:27.687Z

Updated: 2025-12-11T16:09:34.320Z

Reserved: 2025-12-10T17:47:36.418Z

Link: CVE-2025-67716

cve-icon Vulnrichment

Updated: 2025-12-11T16:09:29.627Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-11T01:16:00.890

Modified: 2025-12-12T15:18:13.390

Link: CVE-2025-67716

cve-icon Redhat

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