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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Multiple

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

AV:N/AC:L/Au:M/C:N/I:N/A:P

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Apereo
  • Cas
  • Central Authentication Service

Configuration 1 [-]

cpe:2.3:a:apereo:central_authentication_service:5.2.6:*:*:*:*:*:*:*

No data.

References
Link Providers
https://vuldb.com/?ctiid.306321 cve-icon cve-icon
https://vuldb.com/?id.306321 cve-icon cve-icon
https://vuldb.com/?submit.557110 cve-icon cve-icon
https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG cve-icon cve-icon
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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-04-27T20:31:06.556Z

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.