PT-2025-18017 · Apereo · Apereo Cas

Caichaoxiong · Published 2025-04-27 · Updated 2026-01-08 · CVE-2025-3986

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/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 the software, affecting the CasConfigurationMetadataServerController.java file. The manipulation of the Name argument leads to inefficient regular expression complexity, allowing for a remote attack. The exploit has been publicly disclosed.

Recommendations For Apereo CAS version 5.2.6, as a temporary workaround, consider restricting access to the vulnerable CasConfigurationMetadataServerController.java file until a patch is available. Avoid using the Name argument in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Resource Exhaustion

DoS

Weakness Enumeration

CWE-400

CWE-1333

Related Identifiers

CVE-2025-3986

GHSA-MVWQ-HCRJ-F5X9

Affected Products

Apereo Cas

References · 14

• 🔥 https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a · Exploit
• https://osv.dev/vulnerability/CVE-2025-3986 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-mvwq-hcrj-f5x9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-3986 · Security Note
• https://github.com/apereo/cas · Note
• https://t.me/cvedetector/23866 · Telegram Post
• https://vuldb.com/?id.306322 · Note
• https://twitter.com/CVEnew/status/1916601497128775711 · Twitter Post
• https://twitter.com/vuldb/status/2009396242829525004 · Twitter Post
• https://t.me/cveNotify/141874 · Telegram Post
• https://vuldb.com/?submit.557473 · Note
• https://vuldb.com/?ctiid.306322 · Note
• https://t.me/cvetracker/22477 · Telegram Post
• https://t.me/cvenotify/119973 · Telegram Post