Is CVE-2026-58042 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-58042?

CVE-2026-58042 has a CVSS v3 severity of MEDIUM (5.9).

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CVE-2026-58042

Description

A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records. Repeated triggering of this condition can lead to denial of service. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.