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.

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 TokenRequestCache for the request results. This issue is fixed in versions 4.11.2 and 4.12.1.

Vulnerability class: Broken Access Control

Published 2025-12-10 · last modified 2026-09-25.

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.

EPSS exploit prediction

EPSS: 0.002 (9.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000

Affected products

Auth0 Nextjs-Auth0 — versions >= 4.12.0, < 4.12.1, 4.12.0, 4.11.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

github.com/auth0/nextjs-auth0/security/advisories/GHSA-wcgj-f865-c7j7 (Vendor Advisory)
github.com/auth0/nextjs-auth0/commit/26cc8a7c60f4b134700912736f991a25bd6bbf0b (Patch)

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.