CVE-2026-107369CWE-601

CVE-2026-107369

Medium · published October 14, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
12.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00225 · 12.4th percentile
Weakness
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Published
2026-10-14T01:17Z
References (2)
https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-5vvp-h2v6-59j6 · [email protected]https://trust.okta.com/security-advisories/improper-validation-of-post-login-redirect-url-in-nextjs-auth0-cve-2026-107369 · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 20:08Z
    Improper Validation of Post-Login Redirect URL in nextjs-auth0
    cvelistv5
  • 13 OCT 20:08Z
    Improper Validation of Post-Login Redirect URL in nextjs-auth0
    cvelistv5