Incorrect comparison in ZoneMinder - CVE-2026-104198
Published: November 3, 2026
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication, disclose sensitive information, potentially make unauthorized state changes, and cause a denial of service in the ZoneMinder web panel.
The vulnerability exists due to an incorrect authentication-state comparison in web/includes/auth.php and web/index.php when processing an invalid token parameter. Failed token validation sets $user to boolean false, but isset($user) still returns true, causing the authentication gate to be skipped. A remote attacker can send a request such as index.php?token=invalid_signature_test to access protected views, potentially trigger actions without secondary authorization checks, and cause fatal PHP errors when subsequent code treats $user as an object.