CVE-2026-26280 Systeminformation has a Command Injection via unsanitized interface parameter in wifi.js retry path
Attackers can execute arbitrary OS commands via unsanitized interface parameters in the wifiNetworks function of the systeminformation library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-26280?
CVE-2026-26280 is a high-severity command injection vulnerability in sebhildebrandt systeminformation, published on 19 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-26280?
2 open source packages ship an affected version, including systeminformation. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
systeminformation npm | All versions | 5.30.8 |
systeminformation npm | All versions | 5.30.8 |
Products include Systeminformation Systeminformation.
How do I fix CVE-2026-26280?
Upgrade systeminformation to 5.30.8 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-26280 being exploited?
There is no known exploitation of CVE-2026-26280 in the wild and no public exploit code.
Other vulnerabilities in sebhildebrandt systeminformation
- CVE-2023-42810 systeminformation SSID Command Injection Vulnerability
- CVE-2021-21388 Command Injection Vulnerability in systeminformation
- CVE-2026-26318 systeminformation has Command Injection via Unsanitized `locate` Output in `versions()`
- CVE-2020-7752 Command Injection
- CVE-2026-50289 systeminformation: OS command injection in networkInterfaces() via interfaces(5) source-directive path on Linux
Sources
Also known as CLEANSTART-2026-FG19009, CLSA-2026-1790004555, DEBIAN-CVE-2026-26280, ECHO-4b25-5703-ecdd, GHSA-9c88-49p5-5ggf, MINI-9g4j-4x99-8r2j and 10 more.