Vulnerability Intelligence Report
Apache Commons Configuration: StackOverflowError for YAML input with cycles
CVE-2026-45205
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.
No Active Exploit Signals
CVSS Base Score
5.3
MEDIUM
Exploitability:3.9
Impact Score:1.5
EPSS Probability:0.51%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-674 ↗CWE-674 Uncontrolled Recursion
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apache Software Foundation | Apache Commons Configuration | 2.2 < 2.15.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.507%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apache Software Foundation · Vendor · USA |
| Reserved | 2026-05-11T13:16:23 |
| Published | 2026-05-14T11:22:43 |
| Last Updated | 2026-05-14T20:31:47 |
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