CVE-2026-119198
Nuxt dev server arbitrary file read through client error reports
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.
Fixes and workarounds
Fix
@nuxt/vite-builder (npm): GitHub reports patched versions 4.6.3. Check the advisory for the affected release branch.
Source: GitHub GHSA-x287-wcfc-q46cFix
@nuxt/vite-builder (npm): OSV reports a fixed version 4.6.3. Check the advisory for supported release branches.
Source: OSV GHSA-x287-wcfc-q46cAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| nuxt nuxt |
>= 4.6.0, < 4.6.3 (affected) | CNA: GitHub_M |
@nuxt/vite-builder@nuxt/vite-builder
npm |
>= 4.6.0 < 4.6.3 (affected, GitHub advisory range) | GitHub GHSA-x287-wcfc-q46c |
@nuxt/vite-builder@nuxt/vite-builder
npm |
≥ 4.6.0; < 4.6.3 (affected, semver); OSV events: introduced 4.6.0; fixed 4.6.3Source events (semver)Other versions: unaffected |
OSV GHSA-x287-wcfc-q46c |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 5.9 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | CNA: GitHub_M |
| 3.1 / 5.9 medium |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x287-wcfc-q46cCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/nuxt/nuxt/commit/35856eb148bf8d6f1ad753c5b8b337c52b4fd6b3CNA: GitHub_M · x_refsource_MISC
- https://github.com/nuxt/nuxt/commit/aec8129f68e9b870ca919f8f60e65a4608c8a6d8CNA: GitHub_M · x_refsource_MISC
- https://github.com/nuxt/nuxt/releases/tag/v4.6.3CNA: GitHub_M · x_refsource_MISC
- https://github.com/nuxt/nuxt/commit/35856eb148bf8d6f1ad753c5b8b337c52b4fd6b3[email protected]
- https://github.com/nuxt/nuxt/commit/aec8129f68e9b870ca919f8f60e65a4608c8a6d8[email protected]
- https://github.com/nuxt/nuxt/releases/tag/v4.6.3[email protected]
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x287-wcfc-q46c[email protected]
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x287-wcfc-q46cGitHub Security Advisories · advisory
- https://github.com/advisories/GHSA-x287-wcfc-q46cOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-x287-wcfc-q46cOSV / GitHub Security Advisories · osv
For agents and automation
Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.
Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.
Endpoints and access details
https://api.y2.dev/api/v2/cyber/cveshttps://api.y2.dev/api/v2/cyber/cves/{cveId}
A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.
For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.