---
id: CVE-2026-106071
title: >-
  A flaw in Node.js Permission Model filesystem enforcement can grant access to
  paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write`
  rule.


  When the requested path is shorter than the prefix of a wildcard grant, the r…
summary: >-
  A flaw in Node.js Permission Model filesystem enforcement can grant access to
  paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write`
  rule.


  When the requested path is shorter than the prefix of a wildcard grant, the r…
severity: low
cvss: 3.6
cvssVector: 'CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/CR:M/IR:M/AR:M'
cvssSource: cna
cwe:
  - CWE-284
vendor: nodejs
product: node
affected:
  - node >= 26.12.0 <= 26.12.0
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T16:15:05.791Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-106071'
references:
  - url: 'https://nodejs.org/en/blog/vulnerability/october-2026-security-releases'
tags:
  - cve.org
ingestedAt: '2026-10-23T16:31:11.322Z'
---

## Overview

A flaw in Node.js Permission Model filesystem enforcement can grant access to paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write` rule.

When the requested path is shorter than the prefix of a wildcard grant, the radix tree lookup stops comparing early and treats the path as a match. For example, `--allow-fs-read=/etc/passwd.*` also allows reading `/etc/passwd`. This requires the wildcard grant to sit directly under the root of the permission tree, for example when it is the only grant for that scope. This is a different root cause from CVE-2026-58043.

This vulnerability affects Node.js **26.x**.

## Affected

- `node >= 26.12.0 <= 26.12.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.