CVE-2025-3986

Public Exploit
Apereo CAS CasConfigurationMetadataServerController.java redos

Description

A vulnerability was found in Apereo CAS 5.2.6. It has been declared as problematic. This vulnerability affects unknown code of the file cas-5.2.6\core\cas-server-core-configuration-metadata-repository\src\main\java\org\apereo\cas\metadata\rest\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated 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.

Category

5.3
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory vuldb.com
Affected: Apereo CAS
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.306322 vdb entry technical description
https://vuldb.com/?ctiid.306322 signature permissions required
https://vuldb.com/?submit.557473 third party advisory
https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a exploit

Frequently Asked Questions

What is the severity of CVE-2025-3986?
CVE-2025-3986 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3986?
To fix CVE-2025-3986, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3986 being actively exploited in the wild?
It is possible that CVE-2025-3986 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3986?
CVE-2025-3986 affects Apereo CAS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.