MEDIUM 5.7 Microsoft
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.
Microsoft Security Update 2026-Mar: 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 Products
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21712
- https://nvd.nist.gov/vuln/detail/CVE-2026-21712
This medium severity vulnerability with a CVSS score of 5.7 was published on 2026-03-10 via Microsoft. Affected: azl3 nodejs24 24.13.0-3 on Azure Linux 3.0.
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