CVE-2024-29133: Apache Commons Configuration - StackOverflowError

org.apache.commons:commons-configuration2 Updated 02 Oct 2025

Summary

21/03/2024

Disclosed on

CVE-2024-29133

CVE

Yes i

Fix available

Moderate

Severity

6.5

CVSS Score

CVE-2024-29133: This Out-of-bounds Write vulnerability in Apache Commons Configuration affects Apache Commons Configuration: from 2.0 before 2.10.1. Affects org.apache.commons:commons-configuration2 versions >= 2.0, < 2.10.1. Fixed in 2.10.1. How to fix ↓

Also tracked for

commons-configuration2 · Debian:11

The same CVE-2024-29133 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

Apache Commons Configuration is a Java library that provides a generic configuration interface and implementation. It allows developers to read and write configuration data from various sources. This vulnerability affects versions of Apache Commons Configuration from 2.0 to 2.10.1. The specific issue is related to a StackOverflowError that occurs when calling the 'ListDelimiterHandler.flatten(Object, int)' method with a cyclical object tree. This vulnerability can be exploited by an attacker to cause a denial of service (DoS) by crashing the application or potentially executing arbitrary code.

Vulnerability Detail

The vulnerability in Apache Commons Configuration arises from a StackOverflowError that occurs when processing a cyclical object tree in the 'ListDelimiterHandler.flatten(Object, int)' method. This can be triggered by an attacker by providing a specially crafted input. The vulnerability can lead to a denial of service (DoS) condition, causing the application to crash. In some cases, it may also be possible for an attacker to execute arbitrary code. The severity of this vulnerability is considered moderate, with a CVSS score of 6.5.

How To Fix

Latest published version: 2.15.1 as of 22 Oct 2026

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

2.10.1

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is necessary to upgrade to the fixed version of Apache Commons Configuration to mitigate the risk.

Conclusion

The vulnerability in Apache Commons Configuration can be mitigated by upgrading to version 2.10.1 or later. It is important for developers to promptly update their project's dependencies to ensure the security and stability of their applications. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for org.apache.commons:commons-configuration2 →