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CVE-2026-45205— Apache Commons Configuration: StackOverflowError for YAML input with cycles

Quick assessment

Affected
Apache Software Foundation Apache Commons Configuration
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Commons是美国阿帕奇（Apache）基金会的一个专注于可重用 Java 组件各个方面的 Apache 项目。 Apache Commons 2.2版本至2.15.0之前版本存在安全漏洞，该漏洞源于处理YAML输入时存在不受控制的递归，可能导致堆栈溢出。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Commons Configuration 2.2< 2.15.0 affected
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I. Basic Information for CVE-2026-45205

Vulnerability Information
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Vulnerability Title
Apache Commons Configuration: StackOverflowError for YAML input with cycles
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Commons 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Commons是美国阿帕奇（Apache）基金会的一个专注于可重用 Java 组件各个方面的 Apache 项目。 Apache Commons 2.2版本至2.15.0之前版本存在安全漏洞，该漏洞源于处理YAML输入时存在不受控制的递归，可能导致堆栈溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Commons Configuration 2.2 ~ 2.15.0 -

II. Public POCs for CVE-2026-45205

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III. Intelligence Information for CVE-2026-45205

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Patches & Fixes for CVE-2026-45205 (1)

Mailing List Discussions for CVE-2026-45205 (1)

IV. Related Vulnerabilities

Same product: Apache Commons Configuration
Same vendor: Apache Software Foundation
Same weakness: CWE-674

V. Comments for CVE-2026-45205

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