CVE-2026-107369
Improper Validation of Post-Login Redirect URL in nextjs-auth0
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-601 |
| Vendor | auth0 |
| Product | nextjs-auth0 |
| Published | Oct 13, 2026 |
| Last Updated | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Auth0 / nextjs-auth0
0 < 4.32.0