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6.9

Nuxt dev server may reveal project folder path on LAN

CVE-2026-72744 · published 2 months ago
Summary

When running Nuxt in development mode on a network-accessible address, an attacker on the same local network can trick the server into revealing the full location of your project files and a unique workspace identifier. This happens because the server trusts a header that can be faked, allowing the information to be accessed without any authentication. Update Nuxt to the latest version to stop this behavior.

What to do
  • Update GitHub Actions nuxt to version 4.5.1.
  • Update GitHub Actions nuxt to version 3.21.10.
Affected software
Ecosystem VendorProductAffected versions
– nuxt nuxt < 4.5.1
< 3.21.10
npm GitHub Actions nuxt >= 4.4.7, < 4.5.1
>= 3.21.7, < 3.21.10
Fix: upgrade to 4.5.1
Original advisory text
Nuxt dev server discloses project root and workspace UUID via the Chrome DevTools workspace endpoint
Nuxt versions >= 4.4.7 and < 4.5.1, and >= 3.21.7 and < 3.21.10, contain an information disclosure vulnerability in the development server's Chrome DevTools workspace endpoint (GET /.well-known/appspecific/com.chrome.devtools.json). The endpoint's local-request gate (isLocalDevRequest) is header-based and trusts the attacker-supplied Host header rather than the connected peer address. When the dev server is bound to a network-reachable interface (e.g. nuxt dev --host) and experimental.chromeDevtoolsProjectSettings is enabled (the default), an unauthenticated attacker on the LAN can send a request with a spoofed Host header and no browser-specific headers (Sec-Fetch-Site, Origin, Referer) to retrieve the project's absolute filesystem root path (rootDir) and a persistent per-project workspace UUID. Production builds are unaffected. Fixed in 4.5.1 and 3.21.10.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-200Information Exposure
Timeline
Published11 Aug 2026
Updated3 Nov 2026
First seen11 Aug 2026
Sources
CVE-2026-72744 · NVD
CVE-2026-72744 · MITRE
GHSA-7c4v-fwgw-9rf7 · OSV
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