Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing_CVE-2026-33870

{
    "lastseen": "",
    "description": "Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.",
    "published": "2026-03-27T19:54:15.586Z",
    "modified": "2026-03-31T13:55:47.863Z",
    "type": "cve",
    "title": "Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing",
    "source": "GitHub_M",
    "references": "https://github.com/netty/netty/security/advisories/GHSA-pwqr-wmgm-9rr8\nhttps://w4ke.info/2025/06/18/funky-chunks.html\nhttps://w4ke.info/2025/10/29/funky-chunks-2.html\nhttps://www.rfc-editor.org/rfc/rfc9110",
    "id": "CVE-2026-33870",
    "bulletinFamily": "",
    "cwe": [
        "CWE-444"
    ],
    "cvelist": null,
    "sourceData": "netty netty < 4.1.132.Final\nnetty netty >= 4.2.0.Alpha1, < 4.2.10.Final",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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": "netty",
    "version": "< 4.1.132.Final",
    "vendor": "netty",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}