VULNERABILITY INTELLIGENCE

CVE-2021-29418

CVSS score5.3 MEDIUM
EPSS probability1.51%
CISA KEVNot currently listed
Published2021-03-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Description

The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references