CVE-2026-16639

—

CVSS 3.1

9.8 critical

EPSS

<1%p28

Published

Aug 25, 2026 (21d ago)

Modified

Aug 28, 2026

Description

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.

Ecosystems: Drupal
Weakness: CWE-288
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

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