{"id":"CVE-2024-55634","aliases":["BIT-drupal-2024-55634","DRUPAL-CORE-2024-004","GHSA-7cwc-fjqm-8vh8"],"url":"https://o3.security/vulnerability/CVE-2024-55634","summary":"Drupal core - Moderately critical - Access bypass - SA-CORE-2024-004","details":"Drupal's uniqueness checking for certain user fields is inconsistent 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. This issue affects Drupal Core: from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9, from 11.0.0 before 11.0.8.","published":"2024-12-09T23:21:15.943Z","modified":"2026-08-12T03:51:15.921001010Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00408,"percentile":0.3363,"asOf":"2026-08-10"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"10.2.11"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"10.3.9"},{"ecosystem":"Packagist","name":"drupal/core","fixedVersion":"11.0.8"},{"ecosystem":"Packagist","name":"drupal/core-recommended","fixedVersion":"10.2.11"},{"ecosystem":"Packagist","name":"drupal/core-recommended","fixedVersion":"10.3.9"},{"ecosystem":"Packagist","name":"drupal/core-recommended","fixedVersion":"11.0.8"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"10.2.11"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"10.3.9"},{"ecosystem":"Packagist","name":"drupal/drupal","fixedVersion":"11.0.8"}],"fix":{"url":"https://github.com/drupal/core/commit/7ae0e8f1824e15f8b2b06e4da09836250e85e934","label":"drupal/core@7ae0e8f"},"references":[{"type":"WEB","url":"https://git.drupalcode.org/project/drupal"},{"type":"WEB","url":"https://www.drupal.org/project/drupal/"},{"type":"WEB","url":"https://www.drupal.org/sa-core-2024-004"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/55xxx/CVE-2024-55634.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55634"},{"type":"WEB","url":"https://github.com/drupal/core/commit/7ae0e8f1824e15f8b2b06e4da09836250e85e934"},{"type":"PACKAGE","url":"https://github.com/drupal/core"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.921001010Z"}}