MEDIUM 6.1 NVD
CVE-2026-107369
The auth0/nextjs-auth0 SDK validates that the returnTo parameter is a same-origin URL. The SDK then stores this value and, in a later step, reconstructs it for
The auth0/nextjs-auth0 SDK validates that the returnTo parameter is a same-origin URL. The SDK then stores this value and, in a later step, reconstructs it for the post-authentication redirect. The reconstruction logic can produce a URL that browsers interpret as an absolute or scheme-relative path, leading to a redirect to an unintended domain.
References
- https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6
- https://trust.okta.com/security-advisories/improper-validation-of-post-login-redirect-url-
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-10-13 via NVD.
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