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CVE-2026-50289— systeminformation: OS command injection in networkInterfaces() via interfaces(5) source-directive path on Linux

Quick assessment

Affected
sebhildebrandt systeminformation
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.

sebhildebrandt systeminformation是sebhildebrandt的系统信息收集库。 Sebastian Hildebrandt Systeminformation 5.31.7之前版本存在命令注入漏洞，该漏洞源于lib/network.js中checkLinuxDCHPInterfaces()函数在读取/etc/network/interfaces文件并提取source<path>令牌后，未加引号地将其拼接到execSync执行的命令中，容易受到os命令注入攻击，允许包含sh

AI Predicted 7.4 Difficulty: Easy EPSS 3.56% · P89

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
sebhildebrandt systeminformation < 5.31.7 affected
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I. Basic Information for CVE-2026-50289

Vulnerability Information
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Vulnerability Title
systeminformation: OS command injection in networkInterfaces() via interfaces(5) source-directive path on Linux
Source: CVE Program / CVE List V5
Vulnerability Description
systeminformation is a System and OS information library for node.js. Prior to 5.31.7, networkInterfaces() on Linux is vulnerable to OS command injection through the Debian/Ubuntu interfaces(5) source directive because lib/network.js checkLinuxDCHPInterfaces() reads /etc/network/interfaces, extracts a source <path> token from file content, and interpolates it unquoted into cat ${file} 2> /dev/null | grep 'iface\|source' executed by execSync(cmd, util.execOptsLinux), allowing a path containing shell metacharacters to execute commands in any process that calls networkInterfaces(), including via getStaticData() and getAllData(). This issue is fixed in version 5.31.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Sebastian Hildebrandt Systeminformation 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
sebhildebrandt systeminformation是sebhildebrandt的系统信息收集库。 Sebastian Hildebrandt Systeminformation 5.31.7之前版本存在命令注入漏洞，该漏洞源于lib/network.js中checkLinuxDCHPInterfaces()函数在读取/etc/network/interfaces文件并提取source<path>令牌后，未加引号地将其拼接到execSync执行的命令中，容易受到os命令注入攻击，允许包含sh
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
sebhildebrandt systeminformation < 5.31.7 -

II. Public POCs for CVE-2026-50289

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III. Intelligence Information for CVE-2026-50289

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Patches & Fixes for CVE-2026-50289 (2)

Vendor Advisories for CVE-2026-50289 (1)

IV. Related Vulnerabilities

Same product: systeminformation
Same vendor: sebhildebrandt
Same weakness: CWE-78

V. Comments for CVE-2026-50289

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