Apache Commons Configuration: StackOverflowError for YAML input with cycles

GHSA-337m-mw94-2v6g · CVE-2026-45205

Published May 14, 2026 · Modified May 21, 2026

Description

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.

References

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

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