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Public proof of conceptFix available

CVE-2026-50289

A public proof of concept exists; no exploitation attested.

  • Published2026-07-17
  • Fixed in5.31.7
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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 <path> 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.

Timeline

dates in UTC
  1. 2026-07-1720:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-50289?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-50289?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Systeminformation
BranchAffectedFixed in
5.31< 5.31.75.31.7

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2026-50289 Red Hat Product Security11 known affected

    systeminformation: systeminformation: Arbitrary Command Execution via OS Command Injection

    cryostat/cryostat-openshift-console-plugin-rhel9 as a component of Cryostat 4 · multicluster-engine/console-mce-rhel9 as a component of Multicluster Engine for Kubernetes · rhacm2/console-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · +8 more

Full record on NVD

Fix

  1. Update Systeminformation to 5.31.7
  2. No fix available, says the vendor Red Hat Product Security CVE-2026-50289 · 11 productsAffected

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-07-17
Last Modified
2026-07-29
NVD status
Analyzed
GitHub Advisory
GHSA-5xpp-75jx-m839

Frequently asked questions

What is CVE-2026-50289?

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 <path> 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.

Is CVE-2026-50289 actively exploited?

A proof-of-concept exploit exists for CVE-2026-50289, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-50289?

CVE-2026-50289 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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