Mongoose: Improper Sanitization of $nor in sanitizeFilter May Allow NoSQL Injection_CVE-2026-42334

{
    "lastseen": "",
    "description": "Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.9, 7.8.9, 8.22.1, and 9.1.6, a vulnerability allows bypassing Mongoose\u2019s sanitizeFilter query sanitization mechanism via the $nor operator. When sanitizeFilter is enabled, Mongoose wraps query operators in $eq to neutralize them. However, prior to the fix, $nor was not included in the set of logical operators that are recursively sanitized. Because $nor accepts an array (like $and and $or), and arrays do not trigger hasDollarKeys(), malicious operators such as $ne, $gt, or $regex could be injected inside a $nor clause without being sanitized. This vulnerability is fixed in 6.13.9, 7.8.9, 8.22.1, and 9.1.6.",
    "published": "2026-05-14T18:03:43.196Z",
    "modified": "2026-05-14T18:03:43.196Z",
    "type": "cve",
    "title": "Mongoose: Improper Sanitization of $nor in sanitizeFilter May Allow NoSQL Injection",
    "source": "GitHub_M",
    "references": "https://github.com/Automattic/mongoose/security/advisories/GHSA-wpg9-53fq-2r8h",
    "id": "CVE-2026-42334",
    "bulletinFamily": "",
    "cwe": [
        "CWE-74"
    ],
    "cvelist": null,
    "sourceData": "Automattic mongoose < 6.13.9\nAutomattic mongoose >= 7.0.0, <= 7.8.8\nAutomattic mongoose >= 8.0.0, <= 8.22.0\nAutomattic mongoose >= 9.0.0, <= 9.1.5",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
        "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": "mongoose",
    "version": "< 6.13.9",
    "vendor": "Automattic",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}