Vulnerability Description
Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, nuxt dev stores a generated appSecret in <buildDir>/app-secret, by default .nuxt/app-secret, within a directory allowed by Vite's server.fs configuration. A client with direct HTTP access to an exposed development server can fetch the file, use deriveSecret() to compute derived secrets such as the default useSession password, and forge session cookies accepted by that development server. The default localhost binding limits remote exposure, cross-origin browser reads are blocked, production builds and development servers with an explicitly configured appSecret are not affected. This issue is fixed in version 4.6.3.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/nuxt/nuxt/commit/2981290f36d9c5412c022758f3d89ba21a845308
- https://github.com/nuxt/nuxt/commit/545004cc350be7003dea4116ce6206d6f980b1fd
- https://github.com/nuxt/nuxt/releases/tag/v4.6.3
- https://github.com/nuxt/nuxt/security/advisories/GHSA-3xf4-9g3c-4h4w
FAQ
What is CVE-2026-119201?
CVE-2026-119201 is a vulnerability with a CVSS score of 4.8 (MEDIUM). Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, nuxt dev stores a generated appSecret in <buildDir>/app-secret, by default .nuxt/app-secret, within a directory all...
How severe is CVE-2026-119201?
CVE-2026-119201 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119201?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.