Arbitrary code execution in React server-side rendering of untrusted MDX content_CVE-2026-0969

{
    "lastseen": "",
    "description": "The serialize function used to compile MDX in next-mdx-remote is vulnerable to arbitrary code execution due to insufficient sanitization of MDX content.",
    "published": "2026-02-12T01:35:06.231Z",
    "modified": "2026-02-12T01:35:06.231Z",
    "type": "cve",
    "title": "Arbitrary code execution in React server-side rendering of untrusted MDX content",
    "source": "HashiCorp",
    "references": "https://discuss.hashicorp.com/t/hcsec-2026-01-arbitrary-code-execution-in-react-server-side-rendering-of-untrusted-mdx-content/77155",
    "id": "CVE-2026-0969",
    "bulletinFamily": "",
    "cwe": [
        "CWE-94"
    ],
    "cvelist": null,
    "sourceData": "HashiCorp Shared library 4.3.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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": "Shared library",
    "version": "4.3.0",
    "vendor": "HashiCorp",
    "ai_description": "Arbitrary code execution vulnerability due to insufficient sanitization of MDX content in next-mdx-remote",
    "ai_severity": "High",
    "ai_vendor": "HashiCorp",
    "ai_product": "Shared library",
    "ai_version": "4.3.0",
    "ai_score": 8.8
}