CVE-2026-21712: Input Validation
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21712?
CVE-2026-21712 is a critical vulnerability that can cause Node.js processes to crash due to improper handling of malformed internationalized domain names.
How do I fix CVE-2026-21712?
To fix CVE-2026-21712, upgrade to the latest version of Node.js where the vulnerability has been patched.
What are the potential impacts of CVE-2026-21712?
The potential impact of CVE-2026-21712 includes application crashes and denial of service in Node.js applications.
Which versions of Node.js are affected by CVE-2026-21712?
CVE-2026-21712 affects all versions of Node.js prior to the release of the patch addressing this vulnerability.
How can I determine if my Node.js application is vulnerable to CVE-2026-21712?
You can determine if your Node.js application is vulnerable by checking the version you are running and comparing it to the patched versions available.