CVE Watch15 jul 2026

CVE-2025-55130

A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relativ

CVSS

9.1

Crítico

EPSS

1.6%

p74

KEV

—

Exploit Today

0-100

Publicado: 20 ene 2026 · Última mod.: 15 jul 2026 · CWE-289 · CWE-281

EPSS · 30d

1.6%EPSS · 30 días1.6%

2026-06-302026-07-16

Descripción técnica

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.

Referencias oficiales

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