CVE-2026-21712: 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.
Overview
- Severity
- Medium (CVSS 5.7)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Mar
- Released
- 2026-03-31
- Last Updated
- 2026-04-09
- EPSS Score
- 0.33% (percentile: 24.3%)
Affected Products (1)
Open Source Software
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
Revision History
- 2026-03-31: Information published.
- 2026-04-01: Information published.
- 2026-04-09: Information published.