| Package | Affected versions | Patched versions |
|---|---|---|
| drupal/openid_connect | < 1.5.0 | 1.5.0 |
| openid connect / oauth client | < 8.x-1.5 | 8.x-1.5 |
This module enables you to use an external OpenID Connect login provider to authenticate and log in users on your site. If a user signs in with a login provider for the first time on the website, a new Drupal user will be created.
The module doesn't sufficiently validate the uniqueness of certain user fields depending on the database engine and its collation.
As a result, a user may be able to register with the same email address as another user.
This may lead to data integrity issues.
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