Improper Request Caching Lookup in the Auth0 Next.js SDK
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @auth0/nextjs-auth0 | >= 4.11.0, < 4.11.2, >= 4.12.0, < 4.12.1 | 4.11.2, 4.12.1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N- Weakness (CWE)
CWE-863- Platform
- npm
- Package
@auth0/nextjs-auth0- Disclosed
- 10.12.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wcgj-f865-c7j7 - CC BY 4.0
Vulnerability history: @auth0/nextjs-auth0
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 7
- First → latest
- 06.2021 04.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 4
- Low 1
Disclosures per year
- 2021: 2
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 4
- 2026: 1
-
Improper Request Caching Lookup in the Auth0 Next.js SDK this entry
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