CVE-2026-16639

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639 Internationalization Single Sign-On - Critical - Access bypass - SA-CONTRIB-2026-081

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Internationalization Single Sign-On allows Authentication Bypass. This issue affects Internationalization Single Sign-On versions: from 0.0.0 to 1.8.0...

CVE-2026-16639

CVE-2026-16639 is a critical authentication bypass in the Drupal Internationalization Single Sign-On module (versions 0.0.0 through 1.8.0). The module, used in multilingual websites with separate domain names per language, fails to sufficiently validate a short-lived token , allowing an attacker ...