# CVE-2026-116576: systeminformation: Windows command injection in services() through Unicode quotation marks


- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** Yes
- **Published:** 26 Oct 2026
- **Updated:** 26 Oct 2026
- **Also known as:** DEBIAN-CVE-2026-116576, ECHO-4768-9cb7-856f, GHSA-3f7j-7jwc-fxfj, UBUNTU-CVE-2026-116576

## 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 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-116576?

2 open source packages ship an affected version, including systeminformation.


| Package | Ecosystem | 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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-116576 and fix it if it is affected.

What it is: CVE-2026-116576 is a high-severity vulnerability in sebhildebrandt systeminformation, published on 26 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-116576 in the wild and no public exploit code.

Affected packages and fixed versions:
- systeminformation (npm): affected all versions; fixed in 5.33.16
- systeminformation (npm): affected all versions; fixed in 5.33.16

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-116576/ (Markdown: https://insights.sbomify.com/CVE-2026-116576/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-116576
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-116576
- OSV: https://osv.dev/vulnerability/CVE-2026-116576

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-116576/
Summaries are generated and may contain mistakes; the official description above is the record.