Medium severity6.4NVD Advisory· Published Dec 16, 2021· Updated Jun 17, 2026
CVE-2021-43812
CVE-2021-43812
Description
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions before 1.6.2 do not filter out certain returnTo parameter values from the login url, which expose the application to an open redirect vulnerability. Users are advised to upgrade as soon as possible. There are no known workarounds for this issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@auth0/nextjs-auth0npm | < 1.6.2 | 1.6.2 |
Affected products
3cpe:2.3:a:auth0:nextjs-auth0:*:*:*:*:*:node.js:*:*+ 1 more
- cpe:2.3:a:auth0:nextjs-auth0:*:*:*:*:*:node.js:*:*range: <1.6.2
- (no CPE)range: < 1.6.2
Patches
Vulnerability mechanics
References
4- github.com/auth0/nextjs-auth0/commit/0bbd9f8a0c93af51f607f28633b5fb18c5e48ad6nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-2mqv-4j3r-vjvpghsaADVISORY
- github.com/auth0/nextjs-auth0/security/advisories/GHSA-2mqv-4j3r-vjvpnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-43812ghsaADVISORY
News mentions
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