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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-55130US | critical9.1 | Exploit | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:1842WEB
- https://access.redhat.com/errata/RHSA-2026:1843WEB
- https://access.redhat.com/errata/RHSA-2026:2420WEB
- https://access.redhat.com/errata/RHSA-2026:2421WEB
- https://access.redhat.com/errata/RHSA-2026:2422WEB
- https://access.redhat.com/errata/RHSA-2026:2767WEB
- https://access.redhat.com/errata/RHSA-2026:2768WEB
- https://access.redhat.com/errata/RHSA-2026:2781WEB
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan