CVE-2026-73476

MEDIUM CVSS 3.1: 5.4 EPSS 0.18%
Updated Sep 15, 2026
Drupal
Parameter Value
CVSS 5.4 (MEDIUM)
Affected Versions 8.x-1.0 — 8.x-1.4
Fixed In 2.0.13
Type CWE-178
Vendor Drupal
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 2

Configuration From (including) Up to (excluding)
External_Authentication_Project External_Authentication
cpe:2.3:a:external_authentication_project:external_authentication:*:*:*:*:*:drupal:*:*
2.0.13
External_Authentication_Project External_Authentication
cpe:2.3:a:external_authentication_project:external_authentication:*:*:*:*:*:drupal:*:*
8.x-1.0 <= 8.x-1.4