{"id":"CVE-2026-73476","title":"Improper Handling of Case Sensitivity vulnerability in Drupal External Authentication allows Privilege Escalation","summary":"Improper Handling of Case Sensitivity vulnerability in Drupal External Authentication allows Privilege Escalation. This issue affects External Authentication versions: from 0.0.0 to 2.0.13.","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-178"],"vendor":"external_authentication_project","product":"external_authentication","affected":["external_authentication < 2.0.13","external_authentication >= 8.x-1.0, <= 8.x-1.4"],"patched":["external_authentication 2.0.13"],"published":"2026-09-02","updated":"2026-09-15","sourceUpdated":"2026-09-15T12:28:25.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73476","references":[{"url":"https://www.drupal.org/sa-contrib-2026-098","label":"mlhess@drupal.org"}],"tags":["nvd"],"epss":0.00175,"epssPercentile":0.07294,"ingestedAt":"2026-09-15T12:36:50.170Z","slug":"CVE-2026-73476","body":"## Overview\n\nImproper Handling of Case Sensitivity vulnerability in Drupal External Authentication allows Privilege Escalation. This issue affects External Authentication versions: from 0.0.0 to 2.0.13.\n\n## Affected\n\n- `external_authentication < 2.0.13`\n- `external_authentication >= 8.x-1.0, <= 8.x-1.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `external_authentication 2.0.13`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}