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CVE-2026-13006— Incomplete protection against CVE-2025-11226

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.

QOS.CH Sarl logback是QOS.CH Sarl的日志框架。 Logback-core 1.5.34及之前版本存在输入验证错误漏洞，该漏洞源于条件配置文件处理中的ACE漏洞，可能导致攻击者通过破坏现有配置文件或在程序执行前注入环境变量绕过对CVE-2025-11226的保护，从而执行任意代码。

AI Predicted 5.6 Difficulty: Hard EPSS 0.18% · P6

Affected Version Matrix 2

VendorProduct Version RangeStatus
QOS.CH Sarl Logback-core 0.9.20≤ 1.5.36 affected
1.5.37 unaffected
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I. Basic Information for CVE-2026-13006

Vulnerability Information
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Vulnerability Title
Incomplete protection against CVE-2025-11226
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 1.5.36 in Java applications, allows an attacker to execute arbitrary code circumventing existing protections against CVE-2025-11226 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 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. Please note that in logack version 1.5.37 conditional processing using Janino was removed.
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
QOS.CH Sarl logback 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QOS.CH Sarl logback是QOS.CH Sarl的日志框架。 Logback-core 1.5.34及之前版本存在输入验证错误漏洞，该漏洞源于条件配置文件处理中的ACE漏洞，可能导致攻击者通过破坏现有配置文件或在程序执行前注入环境变量绕过对CVE-2025-11226的保护，从而执行任意代码。
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 ~ 1.5.36 -

II. Public POCs for CVE-2026-13006

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III. Intelligence Information for CVE-2026-13006

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IV. Related Vulnerabilities

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

V. Comments for CVE-2026-13006

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