As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.
This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.
Metrics
Affected Vendors & Products
No data.
No data.
No data.
OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.
No data.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 23 Oct 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Node.js Permission Model Exploit Allows Unsafe RealPath Traversal |
Fri, 23 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`. As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**. | |
| Weaknesses | CWE-284 | |
| References |
| |
| Metrics |
cvssV3_0
|
Projects
Sign in to view the affected projects.
MITRE
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-10-23T16:15:05.728Z
Reserved: 2026-10-06T15:00:00.655Z
Link: CVE-2026-106073
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-10-23T17:17:20.343
Modified: 2026-10-23T19:42:24.553
Link: CVE-2026-106073
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-10-23T18:00:15Z