What is CVE-2026-58043?

CVE-2026-58043 is a high-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 8.4/10. Published 2026-07-30.

How severe is CVE-2026-58043?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Node.js Node

CVE-2026-58043

A flaw in Node.js Permission Model enforcement can over-grant filesystem access across radix-tree prefix boundaries. Under `--permission`, an attacker who is granted access to one path can abuse boundary handling to read from or write to paths outside the intended filesystem allowlist. This vulnerability affects Node.js **main**, **22.x**, **24.x**, and **26.x**.

EPSS: 0.001 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Nodejs Node — versions 22.23.1, 24.18.0, 26.5.0
Nodejs Node.js

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support@hackerone.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-58043?: CVE-2026-58043 is a high-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 8.4/10. Published 2026-07-30.
How severe is CVE-2026-58043?: High severity. CVSS v3 base score is 8.4 out of 10.