# CVE-2026-48936: Node.js: Improper Access Control - Generic

CVE-2026-48936 is fixed in Node.js on 1 platform by Node.js 26.3.1 (version 26.3.1), released June 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-48936
- Priority: Routine
- CVSS: 3.3
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 26, 2026
- Weakness: CWE-284: Improper Access Control - Generic
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-48936

## Description

A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the `--allow-net` permission.    This vulnerability affects one supported release line: **Node.js 26**.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Node.js | 26.3.1 | [Node.js 26.3.1](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs-26.3.1.md) | Jun 17, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.