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Vulnerability record · CVE-2026-45205 · published 14 May 2026

CVE-2026-45205: Apache commons configuration vulnerability

Apache · Commons Configuration

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.

5.3 CVSS 3.1 Medium EPSS 0.82% · top 44.5% CWE-674 · CWE-674
5.3CVSS 3.1 base score
0.82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/apache/commons-configuration/pull/634 Issue TrackingPatch
https://lists.apache.org/thread/q3q3j10ohcqhs6o0rg1v7kz6kk27vtkk Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/14/5 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-45205), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.