VULNERABILITY INTELLIGENCE

CVE-2025-55130

CVSS score9.1 CRITICAL
EPSS probability1.70%
CISA KEVNot currently listed
Published2026-01-20
Last modified2026-07-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-289
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-281

Primary references