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          "defaultStatus": "unaffected",
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            "QUIC protocol implementation",
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            "STREAM frame handler"
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          "repo": "https://github.com/alibaba/xquic",
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                  "status": "unaffected"
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              "version": "0",
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              "value": "Improper input validation, Improper verification of cryptographic signature vulnerability in XQUIC Project XQUIC xquic on Linux (QUIC protocol implementation, packet processing module, STREAM frame handler modules) allows Protocol Manipulation.\u003cp\u003eThis issue affects XQUIC: through 1.8.3.\u003c/p\u003e"
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            "Recovery": "NOT_DEFINED",
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            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
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            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "description": "CWE-20 Improper input validation",
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              "type": "CWE"
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
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              "type": "CWE"
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-04-15T03:18:10.428Z",
        "orgId": "0cc2b86d-1d45-434d-ae74-11d09ec61ae8",
        "shortName": "alibaba"
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      "references": [
        {
          "url": "https://github.com/alibaba/xquic/commit/4764604a0e487eeb49338b4498aecda2194eae84"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "XQUIC Improper STREAM Frame Validation in Initial/Handshake Packets",
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  "cveMetadata": {
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    "assignerShortName": "alibaba",
    "cveId": "CVE-2026-6328",
    "datePublished": "2026-04-15T03:18:10.428Z",
    "dateReserved": "2026-04-15T02:43:22.187Z",
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