5.9
MediumCVSS 3.1 · from GitHub_M
CVE-2026-119199
Nuxt dev server exposes private runtime config through the Nitro dev bundle
nuxt · Information exposure · CWE-200Affectednuxt
FixNo fix listed yet.
PublishedOct 29, 20:14 · GitHub_M
ScoredOct 29 · 5.9 · GitHub_M
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:04 UTC
What we know
No known exploitation. CISA KEV, checked 22:04 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
A successful attack can read data. CVSS impact.
Description
Nuxt is an open-source web development framework for Vue.js. From 3.0.0 until 4.6.3, the Nuxt development server can expose the Nitro 2 development bundle at <buildDir>/dev/index.mjs through Vite file serving when the server is reachable over HTTP. Nitro inlines private runtimeConfig values resolved at build time into that bundle, including secrets configured in nuxt.config, and Nuxt 4.6.0 and later also inline the generated development appSecret. The default localhost binding limits remote exposure, production builds and Nitro 3 are not affected, and runtime configuration supplied only through NUXT_* environment variables at server startup is not inlined. This issue is fixed in version 4.6.3.
From GitHub_M
Affected and fixed versions
ProductAffectedFixed innuxt>= 3.0.0, < 4.6.3–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known