What is CVE-2026-73476?

CVE-2026-73476 is a medium-severity vulnerability in Drupal External Authentication, classified under Improper Handling of Case Sensitivity. CVSS score: 5.4/10. Published 2026-09-02.

How severe is CVE-2026-73476?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Drupal External Authentication

CVE-2026-73476

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.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Drupal External Authentication

Weakness classification (CWE)

CWE-178 — Improper Handling of Case Sensitivity

References

mlhess@drupal.org

Frequently asked questions

What is CVE-2026-73476?: CVE-2026-73476 is a medium-severity vulnerability in Drupal External Authentication, classified under Improper Handling of Case Sensitivity. CVSS score: 5.4/10. Published 2026-09-02.
How severe is CVE-2026-73476?: Medium severity. CVSS v3 base score is 5.4 out of 10.