Nhost CLI MCP Server: Missing Inbound Authentication on Explicitly Bound Network Port_CVE-2026-34200

{
    "lastseen": "",
    "description": "Nhost is an open source Firebase alternative with GraphQL. Prior to version 1.41.0, The Nhost CLI MCP server, when explicitly configured to listen on a network port, applies no inbound authentication and does not enforce strict CORS. This allows a malicious website visited on the same machine to issue cross-origin requests to the MCP server and invoke privileged tools using the developer's locally configured credentials. This vulnerability requires two explicit, non-default configuration steps to be exploitable. The default nhost mcp start configuration is not affected. This issue has been patched in version 1.41.0.",
    "published": "2026-03-31T13:57:42.003Z",
    "modified": "2026-03-31T14:30:36.656Z",
    "type": "cve",
    "title": "Nhost CLI MCP Server: Missing Inbound Authentication on Explicitly Bound Network Port",
    "source": "GitHub_M",
    "references": "https://github.com/nhost/nhost/security/advisories/GHSA-6c5x-3h35-vvw2\nhttps://github.com/nhost/nhost/pull/4060\nhttps://github.com/nhost/nhost/commit/15eae9285f9dce63e184b9bb24616474ffa5ccc9",
    "id": "CVE-2026-34200",
    "bulletinFamily": "",
    "cwe": [
        "CWE-306",
        "CWE-942"
    ],
    "cvelist": null,
    "sourceData": "nhost nhost < 1.41.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/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": "nhost",
    "version": "< 1.41.0",
    "vendor": "nhost",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}