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CVE-2025-11226— Conditional processing of logback.xml configuration file, in conjuction with Spring Framework and Janino

Quick assessment

Affected
QOS.CH Sarl Logback-core
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.

Quality Open Software Logback是瑞士Quality Open Software公司的一个 Java 应用程序的日志记录框架。 Quality Open Software Logback 1.5.18及之前版本存在安全漏洞，该漏洞源于条件配置文件处理不当，可能导致执行任意代码。

AI Predicted 8.1 Difficulty: Hard EPSS 0.19% · P8

Affected Version Matrix 3

VendorProduct Version RangeStatus
QOS.CH Sarl Logback-core 0.9.20≤ 1.5.18 affected
1.5.19 unaffected
1.3.16 unaffected
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I. Basic Information for CVE-2025-11226

Vulnerability Information
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Vulnerability Title
Conditional processing of logback.xml configuration file, in conjuction with Spring Framework and Janino
Source: CVE Program / CVE List V5
Vulnerability Description
ACE vulnerability in conditional configuration file processing by QOS.CH logback-core up to and including version 1.5.18 in Java applications, allows an attacker to execute arbitrary code by compromising an existing logback configuration file or by injecting an environment variable before program execution. A successful attack requires the presence of Janino library and Spring Framework to be present on the user's class path. In addition, the attacker must  have write access to a configuration file. Alternatively, the attacker could inject a malicious environment variable pointing to a malicious configuration file. In both cases, the attack requires existing privilege.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/S:P/AU:N/RE:M/U:Green
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Quality Open Software Logback 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Quality Open Software Logback是瑞士Quality Open Software公司的一个 Java 应用程序的日志记录框架。 Quality Open Software Logback 1.5.18及之前版本存在安全漏洞，该漏洞源于条件配置文件处理不当，可能导致执行任意代码。
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
QOS.CH Sarl Logback-core 0.9.20 ~ 1.5.18 -

II. Public POCs for CVE-2025-11226

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III. Intelligence Information for CVE-2025-11226

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IV. Related Vulnerabilities

Same product: Logback-core
Same vendor: QOS.CH Sarl
Same weakness: CWE-20

V. Comments for CVE-2025-11226

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