{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-10099",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-05-29T15:03:52.130Z",
        "datePublished": "2026-05-29T15:58:24.062Z",
        "dateUpdated": "2026-06-23T16:13:39.435Z"
    },
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                "shortName": "VulnCheck",
                "dateUpdated": "2026-06-23T16:13:39.435Z"
            },
            "title": "XX-Net V5.16.6 WebSocket Frame Parsing Data Corruption via simple_http_server.py",
            "datePublic": "2026-05-29T15:55:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-1286",
                            "description": "CWE-1286 – Improper Validation of Syntactic Correctness of Input",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "XX-net",
                    "product": "XX-Net",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "5.16.6",
                            "versionType": "git"
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                            "status": "affected",
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                            "versionType": "git"
                        }
                    ],
                    "defaultStatus": "unknown"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "XX-Net V5.16.6 contains a WebSocket frame parsing vulnerability in the WebSocket_receive_worker routine of simple_http_server.py that allows attackers to cause corrupted application data by sending unmasked WebSocket frames. The server unconditionally reads 4 bytes as a masking key regardless of whether the MASK bit is set in the frame header, causing the first 4 bytes of payload to be consumed as a mask key and the remaining payload to be incorrectly XOR-decoded, resulting in data corruption alongside missing RSV bit, opcode, and FIN fragmentation validations.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "<p>XX-Net V5.16.6 contains a WebSocket frame parsing vulnerability in the WebSocket_receive_worker routine of simple_http_server.py that allows attackers to cause corrupted application data by sending unmasked WebSocket frames. The server unconditionally reads 4 bytes as a masking key regardless of whether the MASK bit is set in the frame header, causing the first 4 bytes of payload to be consumed as a mask key and the remaining payload to be incorrectly XOR-decoded, resulting in data corruption alongside missing RSV bit, opcode, and FIN fragmentation validations.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/XX-net/XX-Net/issues/14169",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/XX-net/XX-Net/pull/14170",
                    "tags": [
                        "issue-tracking"
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                {
                    "url": "https://github.com/XX-net/XX-Net/commit/a68b972a84ed6e52df9f30237cf47493b9231b53",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://www.vulncheck.com/advisories/xx-net-websocket-frame-parsing-data-corruption-via-simple-http-server-py",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
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                            "value": "GENERAL"
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                        "version": "3.1",
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "NONE",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 4,
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                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "LOW",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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            "credits": [
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                    "lang": "en",
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            "source": {
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        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-01T15:24:05.941612Z",
                                "id": "CVE-2026-10099",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                "title": "CISA ADP Vulnrichment",
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