Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/sebhildebrandt/systeminformation/commit/5014c6d25cfce7363b937
- https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.16
- https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-3f7
FAQ
What is CVE-2026-116576?
CVE-2026-116576 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 a...
How severe is CVE-2026-116576?
CVE-2026-116576 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116576?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.