Authentication bypass using an alternate path or channel in Simple OAuth (OAuth2) & OpenID Connect - CVE-2025-12466

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Main Vulnerability Database Vulnerabilities #VU117801

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 v4.0: 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/E:U/U:Green
CVE-ID: CVE-2025-12466
CWE-ID: CWE-288
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: e0ipso
Affected software:
Simple OAuth (OAuth2) & OpenID Connect

Detailed vulnerability description

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.


How to mitigate CVE-2025-12466

Install updates from vendor's website.

Sources