CVE-2026-119201
mediumNuxt is an open-source web development framework for Vue.js.
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 /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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/nuxt/nuxt/commit/2981290f36d9c5412c022758f3d89ba21a845308 security-advisories@github.com
- https://github.com/nuxt/nuxt/commit/545004cc350be7003dea4116ce6206d6f980b1fd security-advisories@github.com
- https://github.com/nuxt/nuxt/releases/tag/v4.6.3 security-advisories@github.com
- https://github.com/nuxt/nuxt/security/advisories/GHSA-3xf4-9g3c-4h4w security-advisories@github.com