CVE-2021-43812

Open redirect in nextjs-auth0

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.

Category

6.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: auth0 nextjs-auth0
Published at:
Updated at:

References

Link Tags
https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-2mqv-4j3r-vjvp third party advisory
https://github.com/auth0/nextjs-auth0/commit/0bbd9f8a0c93af51f607f28633b5fb18c5e48ad6 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-43812?
CVE-2021-43812 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43812?
To fix CVE-2021-43812, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43812 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43812 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43812?
CVE-2021-43812 affects auth0 nextjs-auth0.
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