Authentication Bypass in Drupal Simple OAuth and OpenID Connect
CVE-2025-12466

7.5HIGH

Key Information:

Vendor

Drupal
Status
Simple Oauth (oauth2) & Openid Connect
Vendor
CVE Published:
29 October 2025

What is CVE-2025-12466?

An authentication bypass vulnerability has been identified in Drupal's Simple OAuth and OpenID Connect modules. This flaw allows attackers to exploit alternate paths or channels to bypass standard authentication mechanisms. The issue primarily affects versions 6.0.0 to 6.0.6, making it essential for users to update to version 6.0.7 or later to ensure proper security measures are in place.

Affected Version(s)

Simple OAuth (OAuth2) & OpenID Connect 6.0.0 < 6.0.7

References

https://www.drupal.org/sa-contrib-2025-114

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coffeemakr
Bojan Bogdanovic (bojan_dev)
coffeemakr
Juraj Nemec (poker10)
Greg Knaddison (greggles)
Juraj Nemec (poker10)
JSON
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CVE-2025-12466 : Authentication Bypass in Drupal Simple OAuth and OpenID Connect