Authentication bypass using an alternate path or channel in Simple OAuth (OAuth2) & OpenID Connect - CVE-2025-12466
Published: October 30, 2025 / Updated: November 20, 2025
Vulnerability identifier: #VU117801
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-12466
CWE-ID: CWE-288
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the authentication bypass using an alternate path or channel. A remote attacker can gain acces to the target application.
Affected software
Simple OAuth (OAuth2) & OpenID Connect
How to mitigate CVE-2025-12466
Install updates from vendor's website.
Simple OAuth (OAuth2) & OpenID Connect - update to 6.0.7