What is CVE-2026-48936?

CVE-2026-48936 is a low-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 3.3/10. Published 2026-06-26.

How severe is CVE-2026-48936?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Node.js Node

CVE-2026-48936

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**.

Published 2026-06-26 · last modified 2026-06-26.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (2.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Node.js Node — versions 26.3.0
Node.js — versions 26.3.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

nodejs.org/en/blog/vulnerability/june-2026-security-releases (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48936?: CVE-2026-48936 is a low-severity vulnerability in Node.js Node, classified under Improper Access Control. CVSS score: 3.3/10. Published 2026-06-26.
How severe is CVE-2026-48936?: Low severity. CVSS v3 base score is 3.3 out of 10.