Answer in brief
CVE-2026-128072 records a Low severity (CVSS 3.1) vulnerability in @nuxt/webpack-builder and @nuxt/rspack-builder dev server serves built source to DNS rebinding pages. The current sources do not mark it as known exploited. The current feed maps nuxt/nuxt (generic), @nuxt/rspack-builder (generic), @nuxt/webpack-builder (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 3.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps nuxt/nuxt (generic), @nuxt/rspack-builder (generic), @nuxt/webpack-builder (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| nuxt/nuxtgeneric | >=3.0.0 <4.6.4 | 4.6.4 |
| @nuxt/rspack-buildergeneric | >=3.12.2 <4.6.4 | 4.6.4 |
| @nuxt/webpack-buildergeneric | >=3.0.0 <4.6.4 | 4.6.4 |
Published upstream
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 13, 2026
Nuxt is an open-source web development framework for Vue.js. From @nuxt/webpack-builder 3.0.0 and @nuxt/rspack-builder 3.12.2 until 4.6.4, the development middleware trusts Origin, Referer, or Sec-Fetch-Site when the Host header names the same attacker-controlled hostname. After DNS rebinding changes that hostname to a loopback address, a malicious page opened by a developer can read /_nuxt/*.js client chunks and inline source maps, exposing compiled application source, local filesystem paths, and developer-controlled values embedded in the client bundle. The attacker must know or guess the development-server port and induce the developer to open the malicious page; Chrome 142 and later and other Chromium-based browsers that enforce Local Network Access restrictions prompt before a public page can reach the loopback address. The default Vite builder and production builds are unaffected. This issue is fixed in version 4.6.4.
Quoted source text, attributed separately from HOL analysis.