CVE-2021-43812
MEDIUM6.4EPSS 0.19%Open redirect in @auth0/nextjs-auth0
Published: 12/16/2021Modified: 3/13/2026
Also known as:GHSA-2mqv-4j3r-vjvp
Description
### Overview Versions `<=1.6.1` do not filter out certain `returnTo` parameter values from the login url, which expose the application to an open redirect vulnerability. ### Am I affected? You are affected by this vulnerability if you are using `@auth0/nextjs-auth0` version `<=1.6.1`. ### How to fix that? Upgrade to version `>=1.6.2` ### Will this update impact my users? The fix provided in the patch will not affect your users.
Affected packages (1)
- npm/@auth0/nextjs-auth0from 0, < 1.6.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |