What is CVE-2026-58039?

CVE-2026-58039 is a low-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 3.3/10. Published 2026-07-31.

How severe is CVE-2026-58039?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Node.js Node

CVE-2026-58039

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**.

EPSS: 0.002 (4.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Nodejs Node — versions 26.5.0, 24.18.0, 22.23.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support@hackerone.com

Frequently asked questions

What is CVE-2026-58039?: CVE-2026-58039 is a low-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 3.3/10. Published 2026-07-31.
How severe is CVE-2026-58039?: Low severity. CVSS v3 base score is 3.3 out of 10.