# CVE-2025-24360: Nuxt @nuxt/vite-builder permissive CORS policy in development server

Source: https://junglewise.ai/threats/cve-2025-24360-nuxt-nuxt-vite-builder-permissive-cors-policy-in-development  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-01-27. Updated: 2026-05-13  
License: CC BY 4.0 with a link back

CVE-2025-24360 · Severity: low · CVSS 3.1 · Published 2025-01-27

Nuxt is a popular web development framework. A security issue in its development server allows malicious websites to bypass security restrictions and read the source code of a project while a developer is working on it. This could lead to the exposure of sensitive intellectual property or application logic if a developer visits a compromised site while their local development environment is active.

Technologies: [@nuxt/vite-builder (npm)](https://junglewise.ai/threats/technologies/nuxt-vite-builder). Vendors: [npm](https://junglewise.ai/threats/vendors/npm), [Nuxt](https://junglewise.ai/threats/vendors/nuxt).

## Quick answers

**Is CVE-2025-24360 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-24360 being exploited in the wild.

**How severe is CVE-2025-24360?** Low severity, with a CVSS score of 3.1, published 27 January 2025.

**Which products and versions are affected?** @nuxt/vite-builder (npm) SEMVER:introduced=3.8.1,fixed=3.15.3; Nuxt Vite-Builder >=3.8.1, <3.15.3.

**Is there a fix for CVE-2025-24360?** Yes. @nuxt/vite-builder (npm): upgrade to 3.15.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-24360 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2025-24360?** Check whether you run @nuxt/vite-builder (npm) or Nuxt Vite-Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- @nuxt/vite-builder (npm): upgrade to 3.15.3 or later

  ```sh
  npm install @nuxt/vite-builder@3.15.3
  ```


## Technical details

The Nuxt development server, specifically when using the @nuxt/vite-builder, implements a custom CORS handler that defaults to 'Access-Control-Allow-Origin: *'. This configuration allows any external origin to perform fetch requests against the local development server (typically localhost:3000). An attacker can exploit this by tricking a developer into visiting a malicious website, which then uses JavaScript to read source files (e.g., app.vue) or manifest data from the dev server. The vulnerability is also potentially susceptible to DNS rebinding due to a lack of Host header validation. The issue is fixed in version 3.15.3; users on older versions can mitigate the risk by manually configuring 'vite.server.cors' to a restrictive value.

## Affected products

- Nuxt @nuxt/vite-builder >=3.8.1, <3.15.3

## Identifiers

- CVE-2025-24360
- GHSA-2452-6xj8-jh47

## Timeline

- 2023-10-28: other: Vulnerable CORS handler introduced in PR #23995
- 2025-01-24: advisory: GitHub Advisory published
- 2025-01-25: other: NVD published date
- 2025-01-27: patched: Fix released in version 3.15.3

## References

- [https://github.com/nuxt/nuxt/security/advisories/GHSA-2452-6xj8-jh47](https://github.com/nuxt/nuxt/security/advisories/GHSA-2452-6xj8-jh47)
- [https://github.com/vitejs/vite/security/advisories/GHSA-vg6x-rcgg-rjx6](https://github.com/vitejs/vite/security/advisories/GHSA-vg6x-rcgg-rjx6)
- [https://github.com/nuxt/nuxt/pull/23995](https://github.com/nuxt/nuxt/pull/23995)
- [https://github.com/nuxt/nuxt/commit/7eeb910bf4accb1e0193b9178c746f06ad3dd88f](https://github.com/nuxt/nuxt/commit/7eeb910bf4accb1e0193b9178c746f06ad3dd88f)
- [https://github.com/nuxt/nuxt](https://github.com/nuxt/nuxt)
- [https://github.com/nuxt/nuxt/blob/7d345c71462d90187fd09c96c7692f306c90def5/packages/vite/src/client.ts](https://github.com/nuxt/nuxt/blob/7d345c71462d90187fd09c96c7692f306c90def5/packages/vite/src/client.ts)

## Related threats

- [Nuxt information disclosure in development server appSecret](https://junglewise.ai/threats/cve-2026-119201-nuxt-is-an-open-source-web-development-framework-for-vue-js-from)
- [Nuxt development server secrets exposure in bundled configuration](https://junglewise.ai/threats/cve-2026-119199-nuxt-is-an-open-source-web-development-framework-for-vue-js-from)
- [Nuxt arbitrary file read in development server HMR](https://junglewise.ai/threats/cve-2026-119198-nuxt-is-an-open-source-web-development-framework-for-vue-js-from)