CVE-2026-45205

Name: CVE-2026-45205
Creator: NVD / NIST
Published: 2026-05-14T12:16:35.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2026-45205 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-674

Affected Software

Vendor	Product	Versions
Apache	Commons Configuration	>= 2.2, < 2.15.0

References

https://github.com/apache/commons-configuration/pull/634Issue Tracking, Patch
https://lists.apache.org/thread/q3q3j10ohcqhs6o0rg1v7kz6kk27vtkkMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/14/5Mailing List, Third Party Advisory

Timeline

Published: May 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-45205?

How severe is CVE-2026-45205?

CVE-2026-45205 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2026-45205?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-45205?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST