Windows command injection in systeminformation services()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-78.
Summary
systeminformation for Node.js before 5.33.16 is affected. On Windows, the sanitizer removes ASCII quotes but keeps Unicode quotation marks that PowerShell accepts as delimiters, so crafted input can break out of the services() filter (CWE-78). A local user with low privileges, or a remote attacker when an application forwards untrusted input, can run a PowerShell expression with the Node.js process account's permissions. The expression may read or change accessible files, alter application data, or disrupt the service.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| sebhildebrandt | systeminformation | before 5.33.16 | 5.33.16 | Patch available | CNA |
| — | systeminformation (npm) | before 5.33.16 | 5.33.16 | Patch available | GHSA-3f7j-7jwc-fxfj |
- systeminformation Vendorsebhildebrandt Affected before 5.33.16 Fixed in 5.33.16 Patch available CNA
- systeminformation (npm) Vendor— Affected before 5.33.16 Fixed in 5.33.16 Patch available GHSA-3f7j-7jwc-fxfj
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:systeminformation:systeminformation:*:*:*:*:*:*:*:* | — | — | sebhildebrandt |
- cpe:2.3:a:systeminformation:systeminformation:*:*:*:*:*:*:*:* Versions — — ·sebhildebrandt
Remediation
Upgrade systeminformation to version 5.33.16, which is the fixed version for the npm package. Red Hat lists no available fix plan for Cryostat 4, Red Hat Developer Hub 1 and Self-service automation portal 2.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA systeminformation (sebhildebrandt) Fixed in 5.33.16
- Fix · GHSA-3f7j-7jwc-fxfj systeminformation (npm) Fixed in 5.33.16 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Cryostat 4 | Affected | No fix yet |
| Red Hat Developer Hub 1 | Affected | No fix yet |
| Self-service automation portal 2 | Affected | No fix yet |
Not affected: 3 products
- Multicluster Engine for Kubernetes
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-26 Threatist record created from CVE-2026-116576
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-27 CVSS score added · Red Hat
- 2026-10-27 Priority changed: MEDIUM → LOW
- 2026-10-28 Alias added: GHSA-3f7j-7jwc-fxfj
- 2026-10-28 Fix available: npm/[email protected] · GHSA-3f7j-7jwc-fxfj
- 2026-10-28 CVSS score added · GHSA-3f7j-7jwc-fxfj
- 2026-10-28 Weakness changed · GHSA-3f7j-7jwc-fxfj
- 2026-10-28 5 new references · GHSA-3f7j-7jwc-fxfj
- 2026-10-30 Affected versions changed · Red Hat
- 2026-11-02 CISA SSVC decision points changed
- 2026-11-02 Priority changed: LOW → HIGH
- 2026-11-04 Affected versions changed · Red Hat
References
Other 4
- https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-3f7j-7jwc-fxfj
- https://github.com/sebhildebrandt/systeminformation/commit/5014c6d25cfce7363b937977327baa853cdba0bf
- https://github.com/sebhildebrandt/systeminformation/releases/tag/v5.33.16
- https://github.com/sebhildebrandt/systeminformation
More sebhildebrandt vulnerabilities
- TI-2021-04415 Command injection in sebhildebrandt systeminformation KEVCVSS 3.1HIGH 7.8
- TI-2026-37031 systeminformation: OS command injection in networkInterfaces() via interfaces(5) source-directive path on Linux CVSS 4.0HIGH 8.7
- TI-2026-32611 systeminformation: Linux command injection in networkInterfaces() via unsanitized NetworkManager connection profile name CVSS 3.1HIGH 7.8
- TI-2024-37295 Command injection vulnerability in getWindowsIEEE8021x (SSID) function in systeminformation CVSS 3.1HIGH 7.8
- TI-2026-81429 Prototype pollution in systeminformation networkStats() CVSS 3.1MEDIUM 6.5
- TI-2023-22901 systeminformation SSID Command Injection Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-116576 · CVE Program
- CVE-2026-116576 · NVD
- FIRST EPSS
- GHSA-3f7j-7jwc-fxfj · GitHub Advisory Database · CC BY 4.0
- CVE-2026-116576 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences