CVE-2026-21712 MEDIUM

CVE-2026-21712

Vendor Nodejs
Product node
Published March 30, 2026
Last update May 10, 2026
View on NVD All CVEs

CVSS base score

5.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 30, 2026 CVE published
May 10, 2026 Record updated