Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion_CVE-2026-22036

{
    "lastseen": "",
    "description": "Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This vulnerability is fixed in 7.18.0 and 6.23.0.",
    "published": "2026-01-14T19:07:13.745Z",
    "modified": "2026-01-14T19:18:24.721Z",
    "type": "cve",
    "title": "Undici has an unbounded decompression chain in HTTP responses on Node.js Fetch API via Content-Encoding leads to resource exhaustion",
    "source": "GitHub_M",
    "references": "https://github.com/nodejs/undici/security/advisories/GHSA-g9mf-h72j-4rw9\nhttps://github.com/nodejs/undici/commit/b04e3cbb569c1596f86c108e9b52c79d8475dcb3",
    "id": "CVE-2026-22036",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "nodejs undici < 6.23.0\nnodejs undici >= 7.0.0, < 7.18.2",
    "sourceHref": "",
    "cvss": {
        "score": 3.7,
        "severity": "LOW",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "undici",
    "version": "< 6.23.0",
    "vendor": "nodejs",
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    "ai_score": 0
}