CVE-2026-72744 Nuxt before 4.5.1 Information Disclosure via Chrome DevTools
An attacker on the LAN can spoof headers to leak project paths and UUIDs from the Nuxt dev server if bound to a network interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72744?
CVE-2026-72744 is a medium-severity vulnerability in nuxt, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-72744?
4 open source packages ship an affected version, including nuxt.
| Package | Affected | Fixed in |
|---|---|---|
nuxt npm | From 3.21.7 | 3.21.10 |
nuxt npm | From 3.21.7 | 3.21.10 |
nuxt npm | From 4.4.7 | 4.5.1 |
nuxt npm | From 4.4.7 | 4.5.1 |
How do I fix CVE-2026-72744?
Upgrade nuxt to a fixed version for your release line: 3.21.10 or 4.5.1.
Is CVE-2026-72744 being exploited?
There is no known exploitation of CVE-2026-72744 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-7c4v-fwgw-9rf7.