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**.

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-08-07

EPSS Score

0.15% (percentile: 4.3%)

Affected Products (1)

Other

• 21498-17084

Revision History

• 2026-08-07: Information published.