CVE-2026-26280: sebhildebrandt systeminformation · OS Command Injection
Affects sebhildebrandt systeminformationSource CVE Database V5
Not known to be exploited · CVSS 8.4 High : upgrade to 5.30.8 soon.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 1.3% chance of exploitation in 30 days – higher than 71% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.30.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Upgrade sebhildebrandt systeminformation to 5.30.8.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| sebhildebrandtsysteminformation | Affected
| Fixed in
|
AI-suggested
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.
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.
References
- github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-9c88-49p5-5ggf (opens in a new tab)
- github.com/sebhildebrandt/systeminformation/commit/22242aa56188f2bffcbd7d265a11e1ebb808b460 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-26280 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2441121 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-26280.json (opens in a new tab)