CVE-2021-27191: Get-IP-Range Project Get-IP-Range

High severity, CVSS 7.5. EPSS: 2% chance of exploitation in the next 30 days.

The get-ip-range package before 4.0.0 for Node.js is vulnerable to denial of service (DoS) if the range is untrusted input. An attacker could send a large range (such as 128.0.0.0/1) that causes resource exhaustion.

Affected products

• Get-IP-Range Project Get-IP-Range: before 4.0.0 (fixed in 4.0.0)

Published 2021-02-11. Last modified 2026-06-17.