LibreChat MCP Stdio Remote Command Execution_CVE-2026-22252

{
    "lastseen": "",
    "description": "LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute shell commands as root inside the container through a single API request. This vulnerability is fixed in v0.8.2-rc2.",
    "published": "2026-01-12T18:01:48.399Z",
    "modified": "2026-01-12T18:01:48.399Z",
    "type": "cve",
    "title": "LibreChat MCP Stdio Remote Command Execution",
    "source": "GitHub_M",
    "references": "https://github.com/danny-avila/LibreChat/security/advisories/GHSA-cxhj-j78r-p88f\nhttps://github.com/danny-avila/LibreChat/commit/211b39f3113d4e6ecab84be0a83f4e9c9dea127f",
    "id": "CVE-2026-22252",
    "bulletinFamily": "",
    "cwe": [
        "CWE-285"
    ],
    "cvelist": null,
    "sourceData": "danny-avila LibreChat < v0.8.2-rc2",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "LibreChat",
    "version": "< v0.8.2-rc2",
    "vendor": "danny-avila",
    "ai_description": "Remote command execution vulnerability in LibreChat's MCP stdio transport",
    "ai_severity": "Critical",
    "ai_vendor": "danny-avila",
    "ai_product": "LibreChat",
    "ai_version": "< v0.8.2-rc2",
    "ai_score": 9.1
}