# CVE-2026-128070: Nuxt dev server serves files from a parent directory that contains a lockfile

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Nuxt is an open-source web development framework for Vue.js. From 3.5.0 until 4.6.4, Nuxt can choose a parent directory as the default workspaceDir in either of two cases: a stray parent lockfile when the project is outside a Git repository and has no workspace file above it, or a parent pnpm or Deno settings file that does not declare packages or a workspace, including when the project is inside a Git repository. When the development server is reachable from an untrusted network, Vite permits /_nuxt/@fs/ requests beneath that widened directory, allowing unauthenticated clients to read files such as credentials and SSH keys. The issue affects the development server only; production builds and projects whose parent directories contain no qualifying files are unaffected. This issue is fixed in version 4.6.4.

## Remediation

- fix: @nuxt/schema (npm): OSV reports a fixed version 4.6.4. Check the advisory for supported release branches. (source: OSV GHSA-mjrq-cffv-q4qc) — https://github.com/advisories/GHSA-mjrq-cffv-q4qc

## Affected products and versions

- nuxt / nuxt: >= 3.5.0, < 4.6.4 (affected). Source: CNA: GitHub_M
- @nuxt / schema: >= 3.5.0, < 4.6.4 (affected). Source: CNA: GitHub_M
-  / @nuxt/schema (@nuxt/schema): ≥ 3.5.0; < 4.6.4 (affected, semver); OSV events: introduced 3.5.0; fixed 4.6.4. Source: OSV GHSA-mjrq-cffv-q4qc

## Severity and prioritization

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: GitHub_M

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-552

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/nuxt/nuxt/security/advisories/GHSA-mjrq-cffv-q4qc (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/nuxt/nuxt/commit/89d3306d1976dd52ac2e73078806a3e889cbb8bd (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/nuxt/nuxt/releases/tag/v4.6.4 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/nuxt/nuxt/commit/89d3306d1976dd52ac2e73078806a3e889cbb8bd (security-advisories@github.com)

- https://github.com/nuxt/nuxt/releases/tag/v4.6.4 (security-advisories@github.com)

- https://github.com/nuxt/nuxt/security/advisories/GHSA-mjrq-cffv-q4qc (security-advisories@github.com)

- https://github.com/advisories/GHSA-mjrq-cffv-q4qc (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-mjrq-cffv-q4qc (OSV / GitHub Security Advisories; osv)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-128070; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-128070; retrieved 2026-11-14; source updated 2026-11-13

- OSV / GitHub Security Advisories: https://osv.dev/vulnerability/GHSA-mjrq-cffv-q4qc; retrieved 2026-11-13; source updated 2026-11-13

Revision: 0c0b1264884ec7fbb0e2ee675acf950d82de2154cb462132129acd1eca72f3ba

Canonical: https://y2.dev/cve/CVE-2026-128070

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.