CVE-2026-73476
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Improper Case Handling in Drupal External Authentication

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: Drupal.org

Description
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.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-73476
EUVD
EUVD-2026-69990

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
drupal external_authentication From 0.0.0 (inc) to 2.0.13 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-178 The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.

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Executive Summary

This vulnerability is an improper handling of case sensitivity in Drupal External Authentication that allows privilege escalation. It affects versions 0.0.0 to 2.0.13 of the External Authentication module.

Impact Analysis

An attacker could exploit this to gain elevated privileges in a Drupal site using vulnerable External Authentication versions, potentially leading to unauthorized access or control.

Mitigation Strategies

Update External Authentication module to version 2.0.14 or later to address the privilege escalation risk.

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