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.
History

Mon, 30 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
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
Metrics cvssV3_0

{'score': 5.7, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2026-03-30T15:13:59.172Z

Updated: 2026-03-30T15:52:42.507Z

Reserved: 2026-01-04T15:00:06.574Z

Link: CVE-2026-21712

cve-icon Vulnrichment

Updated: 2026-03-30T15:52:39.144Z

cve-icon NVD

Status : Received

Published: 2026-03-30T16:16:03.510

Modified: 2026-03-30T16:16:03.510

Link: CVE-2026-21712

cve-icon Redhat

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