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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nuxt | nuxt | 4.4.7 – < 4.5.1, 3.21.7 – < 3.21.10 | 4.5.1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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Saku0512/CVE-2026-72744-poc ★ 1 · Sep 8, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | nuxt | >= 4.4.7, < 4.5.1 | 4.5.1 | GHSA-7c4v-fwgw-9rf7 |
| npm | nuxt | >= 3.21.7, < 3.21.10 | 3.21.10 | GHSA-7c4v-fwgw-9rf7 |
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