{"id":"DRUPAL-CONTRIB-2026-007","aliases":["CVE-2026-1554"],"title":"This module enables you to turn a Drupal install into the Central Authentication System (CAS).","titleSource":"OSV","descriptionSource":"OSV","description":"This module enables you to turn a Drupal install into the Central Authentication System (CAS). It makes your database the primary location for other systems to use for authentication in a SSO environment.\n\nThe module doesn't sufficiently sanitize user-supplied field values configured to be included as attributes in a CAS server response.\n\nThis vulnerability is mitigated by the fact that an attacker must be authenticated, have the ability to enter XML into a user entity field, and that field be configured as a CAS Attribute source leading to an XML Element Injection vulnerability.","severity":"unknown","score":null,"published":"2026-01-28T17:29:32.000Z","modified":"2026-09-10T03:45:42.429Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist:https://packages.drupal.org/8","name":"drupal/cas_server","sources":[{"name":"OSV · DRUPAL-CONTRIB-2026-007","url":"https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-007"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"2.0.3"}],"type":"ECOSYSTEM","database_specific":{"constraint":"<2.0.3"}},{"events":[{"introduced":"2.1.0"},{"fixed":"2.1.2"}],"type":"ECOSYSTEM","database_specific":{"constraint":">=2.1.0 <2.1.2"}}],"versions":[],"fixed":["2.0.3","2.1.2"]}],"sourceAffected":[],"references":["https://www.drupal.org/sa-contrib-2026-007"],"sources":[{"name":"OSV","id":"DRUPAL-CONTRIB-2026-007","modified":"2026-09-10T03:45:42.429481888Z","url":"https://osv.dev/vulnerability/DRUPAL-CONTRIB-2026-007"}],"assessments":[],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:00:30.919Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}