Marked: OOM Denial of Service via Infinite Recursion in marked Tokenizer_CVE-2026-41680

{
    "lastseen": "",
    "description": "Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service (DoS) vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline (\\x09\\x0b\\n)\u2014an unauthenticated attacker can trigger an infinite recursion loop during parsing. This leads to unbounded memory allocation, causing the host Node.js application to crash via Memory Exhaustion (OOM). This vulnerability is fixed in 18.0.2.",
    "published": "2026-04-24T17:26:27.847Z",
    "modified": "2026-04-24T17:26:27.847Z",
    "type": "cve",
    "title": "Marked: OOM Denial of Service via Infinite Recursion in marked Tokenizer",
    "source": "GitHub_M",
    "references": "https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7",
    "id": "CVE-2026-41680",
    "bulletinFamily": "",
    "cwe": [
        "CWE-400",
        "CWE-674",
        "CWE-835"
    ],
    "cvelist": null,
    "sourceData": "markedjs marked >= 18.0.0, < 18.0.2",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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": "marked",
    "version": ">= 18.0.0, < 18.0.2",
    "vendor": "markedjs",
    "ai_description": "Denial of Service (DoS) vulnerability via infinite recursion in marked tokenizer, causing unbounded memory allocation and host application crash",
    "ai_severity": "High",
    "ai_vendor": "markedjs",
    "ai_product": "marked",
    "ai_version": "18.0.0-18.0.1",
    "ai_score": 8.7
}