CVE-2025-3985: Apereo Central Authentication Service

Medium severity, CVSS 4.9. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability was found in Apereo CAS 5.2.6. It has been classified as problematic. This affects the function ResponseEntity of the file cas-5.2.6\webapp-mgmt\cas-management-webapp-support\src\main\java\org\apereo\cas\mgmt\services\web\ManageRegisteredServicesMultiActionController.java. The manipulation of the argument Query leads to inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Apereo Central Authentication Service: version 5.2.6 only

Published 2025-04-27. Last modified 2026-06-17.