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DRUPAL-CONTRIB-2026-098
Details
This module enables you to authenticate Drupal users against external identity providers. The module does not sufficiently ensure exact matching of externally supplied identity values when storing and looking up authentication mappings under certain database collation configurations. This vulnerability is mitigated by the fact that it affects only sites using impacted MySQL or MariaDB collation settings for the module’s authentication mapping storage.
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist:https://packages.drupal.org/8 / drupal/externalauth
Introduced in:
0 Fixed in: 2.0.13 Upgrade drupal/externalauth to 2.0.13 or newer (ecosystem packagist:https://packages.drupal.org/8).