AIOHTTP: Incomplete websocket frame payloads bypass memory limits_CVE-2026-54274

{
    "lastseen": "",
    "description": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1.",
    "published": "2026-06-22T16:33:37.789Z",
    "modified": "2026-06-22T16:33:37.789Z",
    "type": "cve",
    "title": "AIOHTTP: Incomplete websocket frame payloads bypass memory limits",
    "source": "GitHub_M",
    "references": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-xcgm-r5h9-7989\nhttps://github.com/aio-libs/aiohttp/commit/14b6ee851fb16ec199acb950de0c82d476799e7d",
    "id": "CVE-2026-54274",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "aio-libs aiohttp < 3.14.1",
    "sourceHref": "",
    "cvss": {
        "score": 6.6,
        "severity": "MEDIUM",
        "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/E:U",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "aiohttp",
    "version": "< 3.14.1",
    "vendor": "aio-libs",
    "ai_description": "",
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    "ai_score": 0
}