PublicCVE

CVE-2026-21712

MEDIUM5.7

Description

A flaw in Node.js URL processing causes an assertion failure in native code when `url.format()` is called with a malformed internationalized domain name (IDN) containing invalid characters, crashing the Node.js process.

CVSS breakdown

CVSS 3.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected products

Updated 5m ago · 8 sources