CVE-2026-16639

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

51st

EPSS percentile

2026-08-25

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-288

References

https://www.drupal.org/sa-contrib-2026-081

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-16639