PT-2025-18016 · Apereo · Apereo Cas

Caichaoxiong · Published 2025-04-27 · Updated 2026-01-08 · CVE-2025-3985

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Apereo CAS version 5.2.6

Description A vulnerability was found in Apereo CAS, affecting the function ResponseEntity of the file ManageRegisteredServicesMultiActionController.java. The manipulation of the argument Query leads to inefficient regular expression complexity, allowing for a remote attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond.

Recommendations As a temporary workaround, consider restricting access to the ResponseEntity function in the ManageRegisteredServicesMultiActionController.java file until a patch is available. Avoid using the Query argument in the affected function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

CWE-1333

Related Identifiers

CVE-2025-3985

GHSA-8RX4-FXQ5-VJ4V

Affected Products

Apereo Cas

References · 14

• 🔥 https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-3985 · Security Note
• https://osv.dev/vulnerability/GHSA-8rx4-fxq5-vj4v · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-3985 · Vendor Advisory
• https://github.com/apereo/cas · Note
• https://vuldb.com/?ctiid.306321 · Note
• https://t.me/cvenotify/119972 · Telegram Post
• https://t.me/cvedetector/23865 · Telegram Post
• https://vuldb.com/?id.306321 · Note
• https://twitter.com/CVEnew/status/1916595761204396196 · Twitter Post
• https://t.me/cvetracker/22476 · Telegram Post
• https://twitter.com/vuldb/status/2009367395539013877 · Twitter Post
• https://vuldb.com/?submit.557110 · Note
• https://t.me/cveNotify/141873 · Telegram Post