What’s Vulnerable › Vulnerabilities

CVE-2025-3985: Apereo CAS ResponseEntity redos

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-27 · updated 2026-06-17
• Weakness: CWE-400

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.

Affected products

• Apereo Central Authentication Service: 5.2.6

References

• https://vuldb.com/?ctiid.306321
• https://vuldb.com/?id.306321
• https://vuldb.com/?submit.557110
• https://wx.mail.qq.com/s?k=lzDuxVkSRXUZ0bwZEG

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