Auth bypass in Auth0 Nextjs-auth0
CVE-2025-67490
The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. When using versions 4.11.0 through 4.11.2 and 4.12.0, simultaneous requests on the same client may result in improper lookups in the TokenRequ…
Vulnerability class: Broken Access Control
EPSS: 0.000 (15.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N.
Affected products
- Auth0 Nextjs-auth0 — versions >= 4.12.0, < 4.12.1, >= 4.11.0, < 4.11.2
Weakness classification (CWE)
References
- https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-wcgj-f865-c7j7 (x_refsource_CONFIRM)
- https://github.com/auth0/nextjs-auth0/commit/26cc8a7c60f4b134700912736f991a25bd6bbf0b (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-67490?
- CVE-2025-67490 is a medium-severity vulnerability in Auth0 Nextjs-auth0, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2025-12-10.
- How severe is CVE-2025-67490?
- Medium severity. CVSS v3 base score is 5.4 out of 10.