Vulnerability DatabaseCVE-2021-27191
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CVE-2021-27191
Published:February 11, 2021
Updated:July 21, 2026
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 Packages
get-ip-range (NPM):
Affected version(s) >=1.0.0 <4.0.0
Fix Suggestion:
Update to version 4.0.0
Related Resources (6)
https://security.netapp.com/advisory/ntap-20210319-0002
https://security.netapp.com/advisory/ntap-20210319-0002/
https://nvd.nist.gov/vuln/detail/CVE-2021-27191
https://advisory.checkmarx.net/advisory/CX-2021-4304
https://www.npmjs.com/package/get-ip-range
https://github.com/JoeScho/get-ip-range/commit/98ca22b815c77273cbab259811ab0976118e13b6
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
CWE-400
EPSS
Base Score:
2.03