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 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.
- Score
- CVSS 3.1 9.1 Critical
- Status
- Modified - support@hackerone.com
- Published
- 2026-01-20
- Last modified
- 2026-07-15
- Weaknesses
- CWE-281, CWE-289
Affected products
- Node (Nodejs)
- Node.js (Nodejs)
- Enterprise Linux (Redhat)
- Enterprise Linux Eus (Redhat)
- Hummingbird (Redhat)
- Rhel Eus (Redhat)
References
- https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
- https://access.redhat.com/errata/RHSA-2026:1842
- https://access.redhat.com/errata/RHSA-2026:1843
- https://access.redhat.com/errata/RHSA-2026:2420
- https://access.redhat.com/errata/RHSA-2026:2421
- https://access.redhat.com/errata/RHSA-2026:2422
- https://access.redhat.com/errata/RHSA-2026:2767
- https://access.redhat.com/errata/RHSA-2026:2768
- https://access.redhat.com/errata/RHSA-2026:2781
- https://access.redhat.com/errata/RHSA-2026:2782
- https://access.redhat.com/errata/RHSA-2026:2783
- https://access.redhat.com/errata/RHSA-2026:2864
- https://access.redhat.com/errata/RHSA-2026:2899
- https://access.redhat.com/errata/RHSA-2026:6402
- https://access.redhat.com/errata/RHSA-2026:6431
- https://access.redhat.com/errata/RHSA-2026:7386
- https://access.redhat.com/errata/RHSA-2026:7387
- https://access.redhat.com/security/cve/CVE-2025-55130
- https://bugzilla.redhat.com/show_bug.cgi?id=2431352
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-55130.json
