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[ CVE-2026-116576 · Published 26 Oct 2026 ]

systeminformation vulnerable to Windows command injection in services() through Unicode quotation marks

CVSS 7.8 EPSS <1%Fix available

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

systeminformation is a System and OS information library for node.js. Prior to 5.33.16, services() in lib/processes.js inserts a caller-supplied service name into a PowerShell Get-CimInstance filter after processing it with sanitizeShellString() in lib/util.js. On Windows, the sanitizer removes ASCII quotes but permits Unicode quotation marks that PowerShell accepts as string delimiters, allowing crafted input to terminate the filter and place a PowerShell expression in the command executed by util.powerShell(). The expression runs with the Node.js process account's permissions and may read or change accessible files, alter application data, or disrupt the service. The package does not expose a network service itself, so remote reachability depends on a consuming application forwarding attacker-controlled input to services() or getDynamicData(). This issue is fixed in version 5.33.16.

[ Fixes ]Fixes and patches

  • systeminformation 5.33.16Fixed version · GitHub Advisories · npm package systeminformation: upgrade to 5.33.16 or later (affected < 5.33.16)

[ Packages ]Affected open-source packages

[ References ]References