{
  "schemaVersion": 1,
  "incident": {
    "id": "cve-2026-105794",
    "url": "https://cveboard.org/i/cve-2026-105794",
    "urlPt": "https://cveboard.org/pt/i/cve-2026-105794",
    "json": "https://cveboard.org/i/cve-2026-105794.json",
    "kind": "vuln",
    "live": false,
    "knownExploited": false,
    "severity": "critical",
    "title": "MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL",
    "summary": "Improper TLS hostname verification allows a man-in-the-middle (MITM) attack on MsQuic.",
    "titlePt": "MsQuic: Validação incorreta de certificado no Microsoft.Native.Quic.MsQuic.OpenSSL",
    "summaryPt": "Verificação incorreta de hostname TLS permite um ataque do tipo man-in-the-middle (MITM) no MsQuic.",
    "cves": [
      "CVE-2026-105794"
    ],
    "ghsa": "GHSA-w5f4-fx9m-m4q7",
    "cvss": {
      "score": 9.1,
      "version": "4.0"
    },
    "epss": {
      "percentage": 0.01001,
      "percentile": 0.61685,
      "asOf": "2026-10-23"
    },
    "packages": [
      {
        "ecosystem": "nuget",
        "name": "Microsoft.Native.Quic.MsQuic.OpenSSL",
        "vulnerable": "< 2.4.20",
        "fixed": "2.4.20",
        "advisory": "GHSA-w5f4-fx9m-m4q7"
      },
      {
        "ecosystem": "nuget",
        "name": "Microsoft.Native.Quic.MsQuic.OpenSSL",
        "vulnerable": ">= 2.5.0, < 2.5.11",
        "fixed": "2.5.11",
        "advisory": "GHSA-w5f4-fx9m-m4q7"
      },
      {
        "ecosystem": "nuget",
        "name": "Microsoft.Native.Quic.MsQuic.OpenSSL",
        "vulnerable": ">= 2.6.0, < 2.6.1",
        "fixed": "2.6.1",
        "advisory": "GHSA-w5f4-fx9m-m4q7"
      }
    ],
    "vendor": null,
    "product": null,
    "kev": null,
    "breach": null,
    "retracted": false,
    "sources": [
      {
        "label": "GitHub Advisory Database",
        "url": "https://github.com/advisories/GHSA-w5f4-fx9m-m4q7"
      }
    ],
    "publishedAt": "2026-10-06T15:33:08.000Z",
    "updatedAt": "2026-10-06T15:33:08.000Z"
  },
  "live": false,
  "events": [
    {
      "id": "ghsa:GHSA-w5f4-fx9m-m4q7:ghsa_published:2026-10-06T15:33:08.000Z",
      "incidentId": "cve-2026-105794",
      "type": "ghsa_published",
      "at": "2026-10-06T15:33:08.000Z",
      "detail": {
        "ghsa": "GHSA-w5f4-fx9m-m4q7",
        "severity": "critical",
        "fixed": "2.4.20, 2.5.11, 2.6.1"
      }
    }
  ]
}