Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)_CVE-2026-45670

{
    "lastseen": "",
    "description": "Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.6 and 4.4.6.",
    "published": "2026-06-12T12:51:16.156Z",
    "modified": "2026-06-12T12:51:16.156Z",
    "type": "cve",
    "title": "Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)",
    "source": "GitHub_M",
    "references": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g\nhttps://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99\nhttps://github.com/nuxt/nuxt/pull/35051",
    "id": "CVE-2026-45670",
    "bulletinFamily": "",
    "cwe": [
        "CWE-749"
    ],
    "cvelist": null,
    "sourceData": "nuxt nuxt >= 3.15.4, < 3.21.6\nnuxt nuxt >= 4.0.0-alpha.1, < 4.4.6",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "nuxt",
    "version": ">= 3.15.4, < 3.21.6",
    "vendor": "nuxt",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}