Description
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.
Published: 2025-04-27
Score: 5.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-12427 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.
Github GHSA Github GHSA GHSA-8rx4-fxq5-vj4v Apereo CAS has inefficient regular expression complexity
History

Wed, 05 Nov 2025 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Apereo central Authentication Service
CPEs cpe:2.3:a:apereo:central_authentication_service:5.2.6:*:*:*:*:*:*:*
Vendors & Products Apereo central Authentication Service

Mon, 28 Apr 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 27 Apr 2025 20:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Apereo CAS ResponseEntity redos
Weaknesses CWE-1333
CWE-400
References
Metrics cvssV2_0

{'score': 3.3, 'vector': 'AV:N/AC:L/Au:M/C:N/I:N/A:P'}

cvssV3_0

{'score': 2.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L'}

cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Apereo Cas Central Authentication Service
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2025-04-28T18:09:01.110Z

Reserved: 2025-04-26T08:07:05.931Z

Link: CVE-2025-3985

cve-icon Vulnrichment

Updated: 2025-04-28T18:02:32.521Z

cve-icon NVD

Status : Analyzed

Published: 2025-04-27T21:15:16.300

Modified: 2025-11-05T21:30:18.360

Link: CVE-2025-3985

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-06-23T19:31:59Z

Weaknesses