Vulnerability Description
systeminformation is a System and OS information library for node.js. In versions prior to 5.30.8, a command injection vulnerability in the `wifiNetworks()` function allows an attacker to execute arbitrary OS commands via an unsanitized network interface parameter in the retry code path. In `lib/wifi.js`, the `wifiNetworks()` function sanitizes the `iface` parameter on the initial call (line 437). However, when the initial scan returns empty results, a `setTimeout` retry (lines 440-441) calls `getWifiNetworkListIw(iface)` with the **original unsanitized** `iface` value, which is passed directly to `execSync('iwlist ${iface} scan')`. Any application passing user-controlled input to `si.wifiNetworks()` is vulnerable to arbitrary command execution with the privileges of the Node.js process. Version 5.30.8 fixes the issue.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Systeminformation | Systeminformation | < 5.30.8 |
Related Weaknesses (CWE)
References
- https://github.com/sebhildebrandt/systeminformation/commit/22242aa56188f2bffcbd7Patch
- https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-9c8ExploitVendor Advisory
FAQ
What is CVE-2026-26280?
CVE-2026-26280 is a vulnerability with a CVSS score of 8.4 (HIGH). systeminformation is a System and OS information library for node.js. In versions prior to 5.30.8, a command injection vulnerability in the `wifiNetworks()` function allows an attacker to execute arbi...
How severe is CVE-2026-26280?
CVE-2026-26280 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-26280?
Check the references section above for vendor advisories and patch information. Affected products include: Systeminformation Systeminformation.