Main Vulnerability Database Vulnerabilities #VU138925

Improper Authorization in next-auth - #VU138925

Published: July 21, 2026

Vulnerability identifier: #VU138925

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: N/A

CWE-ID: CWE-285

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: NextAuth.js

Affected software:
next-auth

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to configuration errors. A remote attacker can cause existence-based auth checks to fail open.

Install updates from vendor's website.