OS Command Injection in systeminformation (CVE-2026-50289)
Summary
OS command injection in systeminformation (CVE-2026-50289). Successful exploitation can lead to full system takeover. Exploitable via systeminformation. Mitigation: upgrade to 5.31.7 or later.
Original description
The description as published by the source.
systeminformation is a System and OS information library for node.js. Prior to 5.31.7, networkInterfaces() on Linux is vulnerable to OS command injection through the Debian/Ubuntu interfaces(5) source directive because lib/network.js checkLinuxDCHPInterfaces() reads /etc/network/interfaces, extracts a source token from file content, and interpolates it unquoted into cat ${file} 2> /dev/null | grep 'iface|source' executed by execSync(cmd, util.execOptsLinux), allowing a path containing shell metacharacters to execute commands in any process that calls networkInterfaces(), including via getStaticData() and getAllData(). This issue is fixed in version 5.31.7.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-50289 has been found in systeminformation.
Attackers can target a specific entry point like systeminformation over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: upgrade systeminformation to 5.31.7 or later.
If unsure, ask your IT team or search "systeminformation CVE-2026-50289" on the vendor's site.
CVE-2026-50289 (systeminformation) — CWE-78 / CVSS v3 8.8
Attack vector: remote (network-reachable) / no user interaction
Attack surface: systeminformation / source / iface / connectionName
Patched: 5.31.7 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
OS command injection (CWE-78) exists in systeminformation. Attackers reach the vulnerable code path via systeminformation.
Check the vendor advisory for the affected versions of systeminformation. Attack surface: systeminformation / source / iface / connectionName.
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover.
Update to 5.31.7.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'systeminformation' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'systeminformation' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
systeminformationを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade systeminformation to 5.31.7ステージング環境で 5.31.7 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-50289 node-systeminformation Fixed in: 5.31.7-1
- Ubuntu UBUNTU-CVE-2026-50289 node-systeminformation
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web github.com
- web github.com