CVEvulnerability

CVE-2024-21896

9.8 CRITICAL Published 2024-02-20 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-02-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
7.9 HIGH — CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Weaknesses
CWE-27

Description

The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability. 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 configurations

• nodejs node.js (>= 20.0.0 < 20.11.1) • nodejs node.js (>= 21.0.0 < 21.6.2)

Related

Weakness · CWE (1)

  • CWE-27 Path Traversal: 'dir/../../filename' weakness

References