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.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| nodejs | node | >= 20.19.6, <= 20.19.6; >= 22.21.1, <= 22.21.1; >= 24.12.0, <= 24.12.0; >= 25.2.1, <= 25.2.1 |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
References
- https://nodejs.org/en/blog/vulnerability/december-2025-security-releasesRelease Notes, Vendor Advisory
- 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
Timeline
- Published
- Jan 20, 2026
- Last modified
- Jul 15, 2026
- NVD status
- Modified