cpp-httplib vulnerable to a denial of service (DOS) using a zip bomb_CVE-2026-22776

{
    "lastseen": "",
    "description": "cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.1, a Denial of Service (DoS) vulnerability exists in cpp-httplib due to the unsafe handling of compressed HTTP request bodies (Content-Encoding: gzip, br, etc.). The library validates the payload_max_length against the compressed data size received from the network, but does not limit the size of the decompressed data stored in memory.",
    "published": "2026-01-12T18:18:01.527Z",
    "modified": "2026-01-12T18:18:01.527Z",
    "type": "cve",
    "title": "cpp-httplib vulnerable to a denial of service (DOS) using a zip bomb",
    "source": "GitHub_M",
    "references": "https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-h934-98h4-j43q\nhttps://github.com/yhirose/cpp-httplib/commit/2e2e47bab1ae6a853476eecbc4bf279dd1fef792",
    "id": "CVE-2026-22776",
    "bulletinFamily": "",
    "cwe": [
        "CWE-409"
    ],
    "cvelist": null,
    "sourceData": "yhirose cpp-httplib < 0.30.1",
    "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": "cpp-httplib",
    "version": "< 0.30.1",
    "vendor": "yhirose",
    "ai_description": "Denial of Service (DoS) vulnerability due to unsafe handling of compressed HTTP request bodies",
    "ai_severity": "High",
    "ai_vendor": "yhirose",
    "ai_product": "cpp-httplib",
    "ai_version": "< 0.30.1",
    "ai_score": 8.7
}