CVE-2025-67490
MEDIUMCVE-2025-67490 is a medium-severity (CVSS 5.4) CWE-863 vulnerability in @auth0/nextjs-auth0. O3 Security confirms whether CVE-2025-67490 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Auth0 Next.js SDK has Improper Request Caching Lookup
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
@auth0/nextjs-auth0npmDescription
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @auth0/nextjs-auth0 | ≥ 4.11.0&&< 4.11.2 | 4.11.2 |
| 📦npm | @auth0/nextjs-auth0 | ≥ 4.12.0&&< 4.12.1 | 4.12.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @auth0/nextjs-auth0. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update @auth0/nextjs-auth0 to 4.11.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-67490 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-67490 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-67490. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-67490 in your dependencies?
O3 detects CVE-2025-67490 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.