RCE in Sebhildebrandt Systeminformation
CVE-2026-116576
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Sebhildebrandt Systeminformation — versions < 5.33.16
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-116576?
- CVE-2026-116576 is a high-severity vulnerability in Sebhildebrandt Systeminformation, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-10-26.
- How severe is CVE-2026-116576?
- High severity. CVSS v3 base score is 7.8 out of 10.