Vulnerability · Published Oct 29, 2026 · Assigned by GitHub_M

CVE-2026-119198Nuxt dev server arbitrary file read through client error reports

Medium 5.9

In plain English

A medium-severity security flaw in nuxt from nuxt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.3%top 78.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, a client with TCP access to an exposed Nuxt development server can send a nuxt:dev:client-error event over the HMR socket with an absolute file path at the end of its message. The development server reads that file while building the client error report and returns its contents through the error overlay, development error channel, and terminal report, bypassing Vite's server.fs allow list. The default localhost binding limits remote exposure, cross-origin browser requests are rejected, production builds and Nuxt 3 are not affected, and no browser interaction is required. This issue is fixed in version 4.6.3.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@nuxt/vite-builder	4.6.3	GHSA-x287-wcfc-q46c

Affected products (as reported)

Vendor	Product	Versions
nuxt	nuxt	>= 4.6.0, < 4.6.3

Weakness: CWE-73 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-x287-wcfc-q46c x_refsource_CONFIRM
https://github.com/nuxt/nuxt/commit/35856eb148bf8d6f1ad753c5b8b337c52b4fd6b3 x_refsource_MISC
https://github.com/nuxt/nuxt/commit/aec8129f68e9b870ca919f8f60e65a4608c8a6d8 x_refsource_MISC
https://github.com/nuxt/nuxt/releases/tag/v4.6.3 x_refsource_MISC