CVE-2026-119199

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    CVE-2026-119199

    Published: 29 Oct 2026Last Modified: 3 Nov 2026

    Summary: Nuxt dev server exposes private runtime config through the Nitro dev bundle

    Details: 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.

    References: https://github.com/nuxt/nuxt/releases/tag/v4.6.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119199.json, https://github.com/nuxt/nuxt/security/advisories/GHSA-648h-gw55-m2g7, https://nvd.nist.gov/vuln/detail/CVE-2026-119199, https://github.com/nuxt/nuxt/commit/12b58f9d8768682611c3ad4ea4d403875129dbca

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- d991a55ec36f5ac61de0af7d0b018a150153445b
    Fixed -1b09d0c44124179b25fb40a2e41866eba6263e65

    Affected versions

    v4.6.2
    v4.6.1
    v4.6.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-119199 | CVE-DB