CVE-2026-116576 systeminformation: Windows command injection in services() through Unicode quotation marks
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-116576?
CVE-2026-116576 is a high-severity vulnerability in sebhildebrandt systeminformation, published on 26 Oct 2026.
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-116576?
2 open source packages ship an affected version, including systeminformation.
| Package | Affected | Fixed in |
|---|---|---|
systeminformation npm | All versions | 5.33.16 |
systeminformation npm | All versions | 5.33.16 |
How do I fix CVE-2026-116576?
Upgrade systeminformation to 5.33.16 or later.
Is CVE-2026-116576 being exploited?
There is no known exploitation of CVE-2026-116576 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-116576, ECHO-4768-9cb7-856f, GHSA-3f7j-7jwc-fxfj, UBUNTU-CVE-2026-116576.