Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects_CVE-2026-34043

{
    "lastseen": "",
    "description": "Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted \"array-like\" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.",
    "published": "2026-03-31T01:48:45.759Z",
    "modified": "2026-03-31T13:55:54.998Z",
    "type": "cve",
    "title": "Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects",
    "source": "GitHub_M",
    "references": "https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-qj8w-gfj5-8c6v\nhttps://github.com/yahoo/serialize-javascript/commit/f147e90269b58bb6e539cfdf3d0e20d6ad14204b\nhttps://github.com/yahoo/serialize-javascript/releases/tag/v7.0.5",
    "id": "CVE-2026-34043",
    "bulletinFamily": "",
    "cwe": [
        "CWE-400",
        "CWE-834"
    ],
    "cvelist": null,
    "sourceData": "yahoo serialize-javascript < 7.0.5",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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": "serialize-javascript",
    "version": "< 7.0.5",
    "vendor": "yahoo",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}