CVE-2024-21891: Node.js

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Affected products

• Node.js Node.js: from 20.0.0, before 20.11.1 (fixed in 20.11.1); from 21.0.0, before 21.6.2 (fixed in 21.6.2)

Published 2024-02-20. Last modified 2026-06-17.