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Vulnerability record · CVE-2026-56301 · published 23 June 2026

CVE-2026-56301: Nuxt incorrect default permissions vulnerability

Nuxt · Nuxt

Nuxt 4.0.0 before 4.4.7 and 3.18.0 before 3.21.7, when running the development server (nuxt dev) on Linux, binds the vite-node IPC server to an abstract-namespace Unix socket without permission restrictions, allowing local users to enumerate and connect. Unprivileged co-resident users can exploit the unprotected module request handler to read arbitrary files such as .env and SSH keys through the SSR plugin pipeline. Production builds are unaffected, as the IPC server runs only in development.

6.8 CVSS 4.0 Medium EPSS 0.15% · top 96.6% CWE-276 · Incorrect default permissions
6.8CVSS 4.0 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
25 Jun 2026Last modified by NVD

Description

Nuxt 4.0.0 before 4.4.7 and 3.18.0 before 3.21.7, when running the development server (nuxt dev) on Linux, binds the vite-node IPC server to an abstract-namespace Unix socket without permission restrictions, allowing local users to enumerate and connect. Unprivileged co-resident users can exploit the unprotected module request handler to read arbitrary files such as .env and SSH keys through the SSR plugin pipeline. Production builds are unaffected, as the IPC server runs only in development.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/nuxt/nuxt/commit/1f9f4767a8725104da9bee872bb8d35246f25ae5 Patch
https://github.com/nuxt/nuxt/commit/c293bf9503ccb3bc9559bff4a1f592f99063c9ea Patch
https://github.com/nuxt/nuxt/security/advisories/GHSA-534h-c3cw-v3h9 Third Party Advisory
https://www.vulncheck.com/advisories/nuxt-arbitrary-file-read-via-world-connectable-vite-node-ipc-socket-on-linux Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-56301), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.