CVE-2025-67490: Auth0 Next.js SDK has Improper Request Caching Lookup
Description When using affected versions of the Next.js SDK, simultaneous requests on the same client may result in improper lookups in the TokenRequestCache for the request results.
Am I Affected? You are affected if you meet the following preconditions: - Applications using the auth0/nextjs-auth0 SDK with a singleton client instance, versions 4.11.0, 4.11.1, and 4.12.0.
Affected product and versions Auth0/nextjs-auth0 v4.11.0, v4.11.1, and v4.12.0.
Resolution Upgrade Auth0/nextjs-auth0 version to v4.11.2 or v4.12.1
Acknowledgements Okta would like to thank Joshua Rogers (MegaManSec) for their discovery and responsible disclosure.
Other sources
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. When using versions 4.11.0 through 4.11.2 and 4.12.0, simultaneous requests on the same client may result in improper lookups in the TokenRequestCache for the request results. This issue is fixed in versions 4.11.2 and 4.12.1.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-67490?
CVE-2025-67490 is classified as a high severity vulnerability that affects specific versions of the Next.js SDK.
How do I fix CVE-2025-67490?
To mitigate CVE-2025-67490, update to version 4.12.1 or 4.11.2 of the @auth0/nextjs-auth0 package.
What are the affected versions in CVE-2025-67490?
Versions 4.12.0 and 4.11.0 of the @auth0/nextjs-auth0 package are affected by CVE-2025-67490.
What issues does CVE-2025-67490 cause?
CVE-2025-67490 can lead to improper lookups in the TokenRequestCache during simultaneous requests.
Who is affected by CVE-2025-67490?
Any application using the affected versions of the @auth0/nextjs-auth0 package is at risk from CVE-2025-67490.