Vulnerability in Nuxt
CVE-2026-56301
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.
EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Nuxt — versions 4.0.0, 4.4.7, 3.18.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Third Party Advisory)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Patch, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-56301?
- CVE-2026-56301 is a medium-severity vulnerability in Nuxt, classified under Incorrect Default Permissions. CVSS score: 5.5/10. Published 2026-06-23.
- How severe is CVE-2026-56301?
- Medium severity. CVSS v3 base score is 5.5 out of 10.