CVE-2026-26280: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in sebhildebrandt systeminformation
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.
AI Analysis
Technical Summary
The systeminformation Node.js library versions before 5.30.8 have an OS command injection vulnerability (CWE-78) in the wifiNetworks() function. While the initial call sanitizes the iface parameter, the retry mechanism calls getWifiNetworkListIw(iface) with the original unsanitized iface value. This value is passed directly to execSync('iwlist ${iface} scan'), enabling an attacker controlling iface to execute arbitrary OS commands with the privileges of the Node.js process. The vulnerability is fixed in version 5.30.8.
Potential Impact
An attacker able to supply a malicious iface parameter to the wifiNetworks() function can execute arbitrary operating system commands with the privileges of the Node.js process running the systeminformation library. This can lead to full system compromise, data loss, or service disruption. The CVSS 3.1 score is 8.4 (High), reflecting high confidentiality, integrity, and availability impacts. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade systeminformation to version 5.30.8 or later, where the vulnerability is fixed. The vendor advisory from Red Hat confirms the fix in 5.30.8. Until upgraded, avoid passing user-controlled input to the wifiNetworks() function to prevent exploitation.
CVE-2026-26280: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in sebhildebrandt systeminformation
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 v3.1
Score 8.4high
Affected software
sebhildebrandt
systeminformation
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The systeminformation Node.js library versions before 5.30.8 have an OS command injection vulnerability (CWE-78) in the wifiNetworks() function. While the initial call sanitizes the iface parameter, the retry mechanism calls getWifiNetworkListIw(iface) with the original unsanitized iface value. This value is passed directly to execSync('iwlist ${iface} scan'), enabling an attacker controlling iface to execute arbitrary OS commands with the privileges of the Node.js process. The vulnerability is fixed in version 5.30.8.
Potential Impact
An attacker able to supply a malicious iface parameter to the wifiNetworks() function can execute arbitrary operating system commands with the privileges of the Node.js process running the systeminformation library. This can lead to full system compromise, data loss, or service disruption. The CVSS 3.1 score is 8.4 (High), reflecting high confidentiality, integrity, and availability impacts. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade systeminformation to version 5.30.8 or later, where the vulnerability is fixed. The vendor advisory from Red Hat confirms the fix in 5.30.8. Until upgraded, avoid passing user-controlled input to the wifiNetworks() function to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-12T17:10:53.414Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-26280","vendor":"Red Hat"}]
Threat ID: 69978157d7880ec89b3497ac
Added to database: 02/19/2026, 21:32:07 UTC
Last enriched: 07/15/2026, 08:42:39 UTC
Last updated: 09/10/2026, 22:06:40 UTC
Views: 235
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