drupal/i18n_sso - SA-CONTRIB-2026-081
In a scenario of a multilingual website with different domain names per language, this module enables you to be automatically connected across the language domains if you are logged on the main language domain.
The module doesn't sufficiently validate a short-lived token, allowing an attacker to bypass access control and authenticate as a victim user.
This vulnerability is mitigated by the fact that an attacker must appear to originate from the same client IP as the victim.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/i18n_sso | < 1.8.0 | 1.8.0 |
| Drupal module | drupal/i18n_sso | < 1.8.0 | 1.8.0 |
References
- Weakness (CWE)
-- Platform
- Composer, Drupal
- Package
drupal/i18n_sso- Disclosed
- 22.07.2026
- Updated
- 11.10.2026 12:18
Sources and licenses
OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2026-081 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/i18n_sso
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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