Vulnerability · Published Aug 11, 2026 · Assigned by VulnCheck
CVE-2026-72744Nuxt before 4.5.1 Information Disclosure via Chrome DevTools
Medium 6.2
In plain English
A medium-severity information exposure in nuxt from nuxt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | nuxt | 4.5.1 | GHSA-7c4v-fwgw-9rf7 |
| npm | nuxt | 3.21.10 | GHSA-7c4v-fwgw-9rf7 |
Affected products (as reported)
Weakness: CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Security Advisory (GHSA-7c4v-fwgw-9rf7) vendor-advisory
- VulnCheck Advisory: Nuxt before 4.5.1 Information Disclosure via Chrome DevTools third-party-advisory