Is CVE-2026-58039 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-58039?

CVE-2026-58039 has a CVSS v3 severity of LOW (3.3).

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CVE-2026-58039

Description

A flaw in Node.js Permission Model enforcement allows process.report writes (and overwrites) files outside --allow-fs-write paths. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.