Nuxt dot segments bypass server middleware and route rules on page routes
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
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 render app/pages/admin.vue and its server-rendered data, so checks keyed to /admin, redirects and per-route security headers do not apply. Versions from 4.6.0 before 4.6.3 are affected, and exploitation requires a client that sends dot segments without browser normalization. API handlers, appMiddleware, Nuxt 3 and Nuxt 4.0.0 through 4.5.x are not affected.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| nuxt | nuxt | 4.6.0 to before 4.6.3 | 4.6.3 | Patch available | CNA |
| nuxt | nitro-server | 4.6.0 to before 4.6.3 | 4.6.3 | Patch available | CNA |
| — | nuxt (npm) | 4.6.0 to before 4.6.3 | 4.6.3 | Patch available | GHSA-9v7c-q64q-vv33 |
| — | @nuxt/nitro-server (npm) | 4.6.0 to before 4.6.3 | 4.6.3 | Patch available | GHSA-9v7c-q64q-vv33 |
- nuxt Vendornuxt Affected 4.6.0 to before 4.6.3 Fixed in 4.6.3 Patch available CNA
- nitro-server Vendornuxt Affected 4.6.0 to before 4.6.3 Fixed in 4.6.3 Patch available CNA
- nuxt (npm) Vendor— Affected 4.6.0 to before 4.6.3 Fixed in 4.6.3 Patch available GHSA-9v7c-q64q-vv33
- @nuxt/nitro-server (npm) Vendor— Affected 4.6.0 to before 4.6.3 Fixed in 4.6.3 Patch available GHSA-9v7c-q64q-vv33
Remediation
Upgrade nuxt and @nuxt/nitro-server to version 4.6.3.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA nuxt (nuxt) Fixed in 4.6.3
- Fix · CNA nitro-server (@nuxt) Fixed in 4.6.3
- Fix · GHSA-9v7c-q64q-vv33 nuxt (npm) Fixed in 4.6.3 Advisory →
- Fix · GHSA-9v7c-q64q-vv33 @nuxt/nitro-server (npm) Fixed in 4.6.3 Advisory →
Timeline
- 2026-10-29 Threatist record created from CVE-2026-119200
- 2026-10-30 Alias added: GHSA-9v7c-q64q-vv33
- 2026-10-30 Fix available: npm/@nuxt/[email protected], npm/[email protected] · GHSA-9v7c-q64q-vv33
- 2026-10-30 CVSS score added · GHSA-9v7c-q64q-vv33
- 2026-10-30 Weakness changed · GHSA-9v7c-q64q-vv33
- 2026-10-30 5 new references · GHSA-9v7c-q64q-vv33
- 2026-10-31 Priority changed: MEDIUM → LOW
- 2026-11-04 CISA SSVC decision points changed
References
More nuxt vulnerabilities
- TI-2023-03020 Code Injection in nuxt/nuxt CVSS 3.1CRITICAL 9.8
- TI-2024-28339 Server-Side Request Forgery (SSRF) in nuxt-icon CVSS 3.1HIGH 8.6
- TI-2024-22685 Remote code execution via the browser when running the test locally in nuxt CVSS 3.1HIGH 8.8
- TI-2026-26689 Nuxt OG Image vulnerable to DoS via image generation CVSS 4.0MEDIUM 6.9
- TI-2022-04037 Cross-site Scripting (XSS) - DOM in nuxt/framework CVSS 3.1MEDIUM 6.1
- TI-2022-04036 Cross-site Scripting (XSS) - Reflected in nuxt/framework CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-119200 · CVE Program
- CVE-2026-119200 · NVD
- FIRST EPSS
- GHSA-9v7c-q64q-vv33 · GitHub Advisory Database · CC BY 4.0
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