Information disclosure in Nuxt
CVE-2026-72744
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (6.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Nuxt — versions 4.4.7, 4.5.1, 3.21.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nuxt/nuxt/security/advisories/GHSA-7c4v-fwgw-9rf7 (vendor-advisory)
- www.vulncheck.com/advisories/nuxt-before-information-disclosure-via-chrome-devt… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72744?
- CVE-2026-72744 is a medium-severity vulnerability in Nuxt, classified under Information Disclosure. CVSS score: 6.2/10. Published 2026-08-11.
- How severe is CVE-2026-72744?
- Medium severity. CVSS v3 base score is 6.2 out of 10.
- Is CVE-2026-72744 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.