MEDIUM5.3

GHSA-337m-mw94-2v6g

Apache Commons Configuration: StackOverflowError for YAML input with cycles

Quick fix

GHSA-337m-mw94-2v6g — org.apache.commons:commons-configuration2: upgrade to the fixed version with the command below.

# pom.xml: bump <version>2.15.0</version> for org.apache.commons:commons-configuration2

Details

Uncontrolled Recursion vulnerability in Apache Commons.

When processing an untrusted configuration file, Commons Configuration will throw a StackOverflowError for YAML input with cycles. This issue affects Apache Commons: from 2.2 before 2.15.0.

Users are recommended to upgrade to version 2.15.0, which fixes the issue.

Are you affected?

Enter the version of the package you're using.

Affected packages

Maven/org.apache.commons:commons-configuration2

Introduced in: 2.2Fixed in: 2.15.0

Fix# pom.xml: bump <version>2.15.0</version> for org.apache.commons:commons-configuration2

References

https://nvd.nist.gov/vuln/detail/CVE-2026-45205[ADVISORY]
https://github.com/apache/commons-configuration/pull/634[WEB]
https://github.com/apache/commons-configuration[PACKAGE]
https://lists.apache.org/thread/q3q3j10ohcqhs6o0rg1v7kz6kk27vtkk[WEB]
http://www.openwall.com/lists/oss-security/2026/05/14/5[WEB]