CVE-2021-43812: URL Redirection to Untrusted Site ('Open Redirect')

December 16, 2021 (updated December 22, 2021)

The Auth0 Next.js does 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.

References

github.com/auth0/nextjs-auth0/commit/0bbd9f8a0c93af51f607f28633b5fb18c5e48ad6
github.com/auth0/nextjs-auth0/security/advisories/GHSA-2mqv-4j3r-vjvp
nvd.nist.gov/vuln/detail/CVE-2021-43812

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