SA-CONTRIB-2026-322: Critical severity composer/drupal/auth_login_plus vulnerability
This module enables you to require a second authentication factor (a time-based one-time password from an authenticator app) when users log in. Under certain circumstances, an attacker can make the module treat a login as having passed the password check when it did not, or reach the two-factor setup page of another account. Depending on the site's configuration, this can allow the attacker to take over an account that has 2FA enabled without knowing its password or its second factor. This vulnerability is mitigated by the fact that the attacker must have an account of their own on the site, must already control the victim's email address or know the victim's password, and must win a timing-dependent race.
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
composer/drupal/auth_login_plusto a version that resolves this vulnerability.Fixed in 1.0.3
Event History
Frequently Asked Questions
Can an attacker exploit this without first registering or controlling an account on the site?
No. The attacker must have an account of their own on the affected site.
What additional conditions are required for account takeover?
The attacker must already control the victim's email address or know the victim's password, and must win a timing-dependent race. Whether those conditions result in takeover also depends on the site's configuration.