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Message-ID: <1a0258a0-fd45-f0ce-3082-bb336058df53@apache.org>
Date: Thu, 14 May 2026 11:01:03 +0000
From: "Gary D. Gregory" <ggregory@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-45205: Apache Commons Configuration: StackOverflowError
for YAML input with cycles
Severity: low
Affected versions:
- Apache Commons Configuration (org.apache.commons:commons-configuration2) 2.2 before 2.15.0
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.
Credit:
Erichen, Institute of Computing Technology, Chinese Academy of Sciences (reporter)
References:
https://github.com/apache/commons-configuration/pull/634
https://commons.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-45205
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