Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb_CVE-2026-10725

{
    "lastseen": "",
    "description": "Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb.\n\nProtocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the \"HTTP/2 bomb\").\n\nThe headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded.\n\nMAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode.  It is absent from the decoder and from the :limits export tag.",
    "published": "2026-06-06T09:14:45.652Z",
    "modified": "2026-06-08T18:12:32.557Z",
    "type": "cve",
    "title": "Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb",
    "source": "CPANSec",
    "references": "https://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/HeaderCompression.pm#L133\nhttps://metacpan.org/release/CRUX/Protocol-HTTP2-1.12/source/lib/Protocol/HTTP2/Stream.pm#L414\nhttps://security.metacpan.org/patches/P/Protocol-HTTP2/1.12/CVE-2026-10725-r1.patch",
    "id": "CVE-2026-10725",
    "bulletinFamily": "",
    "cwe": [
        "CWE-409"
    ],
    "cvelist": null,
    "sourceData": "CRUX Protocol::HTTP2 0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/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": "Protocol::HTTP2",
    "version": "0",
    "vendor": "CRUX",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}