sebhildebrandt systeminformation up to 5.31.6 Network Interface Parser lib/network.js checkLinuxDCHPInterfaces Source os command injection

Summaryinfo

A vulnerability labeled as problematic has been found in sebhildebrandt systeminformation up to 5.31.6. This affects the function checkLinuxDCHPInterfaces of the file lib/network.js of the component Network Interface Parser. Executing a manipulation of the argument Source can lead to os command injection. This vulnerability is tracked as CVE-2026-50289. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in sebhildebrandt systeminformation up to 5.31.6. It has been declared as problematic. This vulnerability affects the function checkLinuxDCHPInterfaces of the file lib/network.js of the component Network Interface Parser. The manipulation of the argument source with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-50289 since 06/04/2026. The exploitation appears to be easy. Local access is required to approach this attack. Additional levels of successful authentication are required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 5.31.7 eliminates this vulnerability.

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Productinfo

Vendor

• sebhildebrandt

Name

• systeminformation

Version

• 5.31.0
• 5.31.1
• 5.31.2
• 5.31.3
• 5.31.4
• 5.31.5
• 5.31.6

Website

• Product: https://github.com/sebhildebrandt/systeminformation/

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