Detections
Analytics

CVE-2026-21712

medium

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.

References

https://nodejs.org/en/blog/vulnerability/march-2026-security-releases

https://hackerone.com/reports/3546390

Details

Source: Mitre, NVD

Published: 2026-03-30

Updated: 2026-04-01

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 5.7

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

Severity: Medium

EPSS

EPSS: 0.00012