CVE-2026-21712

March 30, 2026, 4:16 p.m.

5.7
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.

Product(s) Impacted

Vendor Product Versions
Nodejs
  • Node.js
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a nodejs node.js / / / / / / / /

References

https://hackerone.com/reports/3546390
https://nodejs.org/en/blog/vulnerability/march-2026-security-releases

Tags

[email protected]
2026-03-30
CVE-2026-21712

CVSS Score

5.7 / 10

CVSS Data - 3.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

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

    View Vector String

Timeline

Published: March 30, 2026, 4:16 p.m.
Last Modified: March 30, 2026, 4:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.