CVE-2026-45205: Apache Commons Configuration

Medium severity, CVSS 5.3. EPSS: 0.8% chance of exploitation in the next 30 days.

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.

Affected products

• Apache Commons Configuration: from 2.2, before 2.15.0 (fixed in 2.15.0)

Published 2026-05-14. Last modified 2026-06-17.