CVE-2026-50289
Command injection in systeminformation networkInterfaces() on Linux (fixed in 5.31.7)
Is CVE-2026-50289 being exploited?
Not confirmed. CVE-2026-50289 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 2.2% probability of exploitation in the next 30 days.
How severe is CVE-2026-50289?
CVE-2026-50289 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-50289?
Yes. A fix has been recorded for CVE-2026-50289. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-50289 affect?
CVE-2026-50289 affects Node.js systeminformation < 5.31.7, Linux hosts parsing /etc/network/interfaces, Applications using systeminformation networkInterfaces/getStaticData/getAllData. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50289?
Upgrade systeminformation to >=5.31.7 and audit usages; sanitize inputs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE via crafted /etc/network/interfaces 'source' path; attacker can execute arbitrary shell commands in any process calling networkInterfaces()/getStaticData()/getAllData.
Immediate action required
- affected< 5.31.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.