What is CVE-2025-3985?

CVE-2025-3985 is a low-severity vulnerability in Apereo Cas, classified under Uncontrolled Resource Consumption. CVSS score: 2.7/10. Published 2025-04-27.

How severe is CVE-2025-3985?

Low severity. CVSS v3 base score is 2.7 out of 10.

Resource exhaustion in Apereo Cas

CVE-2025-3985

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.006 (43.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L.

Affected products

Apereo Cas — versions 5.2.6
Apereo Central_authentication_service — versions 5.2.6

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (exploit, Not Applicable)

Frequently asked questions

What is CVE-2025-3985?: CVE-2025-3985 is a low-severity vulnerability in Apereo Cas, classified under Uncontrolled Resource Consumption. CVSS score: 2.7/10. Published 2025-04-27.
How severe is CVE-2025-3985?: Low severity. CVSS v3 base score is 2.7 out of 10.