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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
sebhildebrandt systeminformation
< 5.30.8affected
References
- https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-9c88-49p5-5ggf ↗
- https://github.com/sebhildebrandt/systeminformation/commit/22242aa56188f2bffcbd7d265a11e1ebb808b460 ↗
- https://access.redhat.com/security/cve/CVE-2026-26280 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2441121 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26280.json ↗