CVE-2025-12466: Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass

CVE-2025-12466 · Severity: high · CVSS 7.5 · Published 2025-10-30

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass.This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7.

Technologies: Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth. Vendors: Packagist, Packagist:Https://Packages.Drupal.Org/8.

Quick answers

Is CVE-2025-12466 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-12466 being exploited in the wild.
How severe is CVE-2025-12466?
High severity, with a CVSS score of 7.5, published 30 October 2025.
Which products and versions are affected?
drupal/simple_oauth (Packagist) ECOSYSTEM:introduced=6.0.0,fixed=6.0.7; Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth ECOSYSTEM:introduced=6.0.0,fixed=6.0.7.
Is there a fix for CVE-2025-12466?
Yes. drupal/simple_oauth (Packagist): upgrade to 6.0.7 or later; Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth: upgrade to 6.0.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-12466?
Check whether you run drupal/simple_oauth (Packagist), Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth or Simple Oauth Project Simple Oauth at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • drupal/simple_oauth (Packagist): upgrade to 6.0.7 or later
    composer require drupal/simple_oauth:^6.0.7
  • Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth: upgrade to 6.0.7 or later

Affected products

  • drupal/simple_oauth (Packagist) ECOSYSTEM:introduced=6.0.0,fixed=6.0.7
  • Packagist:Https://Packages.Drupal.Org/8 Drupal/Simple Oauth ECOSYSTEM:introduced=6.0.0,fixed=6.0.7
  • Simple Oauth Project Simple Oauth

Identifiers

  • CVE-2025-12466
  • DRUPAL-CONTRIB-2025-114
  • GHSA-jqmq-fpwv-p925

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