What is CVE-2025-67716?

CVE-2025-67716 is a medium-severity vulnerability in Auth0 Nextjs-auth0, classified under Incomplete List of Disallowed Inputs. CVSS score: 5.7/10. Published 2025-12-11.

How severe is CVE-2025-67716?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Vulnerability in Auth0 Nextjs-auth0

CVE-2025-67716

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. Versions 4.9.0 through 4.12.1 contain an input-validation flaw in the returnTo parameter, which could allow attackers to inject unintended OAu…

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N.

Affected products

Auth0 Nextjs-auth0 — versions >= 4.9.0, < 4.13.0

Weakness classification (CWE)

CWE-184 — Incomplete List of Disallowed Inputs

References

https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-mr6f-h57v-rpj5 (x_refsource_CONFIRM)
https://github.com/auth0/nextjs-auth0/commit/35eb321de3345ccf23e8c0d6f66c9f2f2f57d26c (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-67716?: CVE-2025-67716 is a medium-severity vulnerability in Auth0 Nextjs-auth0, classified under Incomplete List of Disallowed Inputs. CVSS score: 5.7/10. Published 2025-12-11.
How severe is CVE-2025-67716?: Medium severity. CVSS v3 base score is 5.7 out of 10.