CVE-2025-67716

MediumCVSS 5.7/10Last modified Oct 14, 2026

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.

Metrics

CVSS 3.1 5.7/10CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-184

Affected software

No affected versions have been published.

Timeline

Published: Dec 11, 2025
Last modified: Oct 14, 2026
NVD status: Analyzed

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