CVE-2026-50289

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.

• CWE-78

• https://github.com/sebhildebrandt/systeminformation/commit/bbfddde48672d0ee124fefdb3cb4442fd9dd4f03Patch
• https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.31.7Product, Release Notes
• https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-5xpp-75jx-m839Exploit, Mitigation, Vendor Advisory
• https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-5xpp-75jx-m839Exploit, Mitigation, Vendor Advisory

Published

Jul 17, 2026

Last Modified

Jul 29, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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