{
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          {
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              "content": {
                "id": "CVE-2026-104480",
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                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
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        "title": "CISA ADP Vulnrichment"
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          "defaultStatus": "unaffected",
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              "name": "discord::dave::mls::Session::VerifyWelcomeState"
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        }
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            "baseSeverity": "CRITICAL",
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              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-390",
              "description": "CWE-390 Detection of Error Condition Without Action",
              "lang": "en",
              "type": "CWE"
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
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              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-02T00:57:55.648Z",
        "orgId": "4ac701fe-44e9-4bcd-9585-dd6449257611",
        "shortName": "Bugcrowd"
      },
      "references": [
        {
          "name": "[cpp] restore strict validation of MLS welcome state",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/discord/libdave/commit/9686fbaea864aa19f0675e486672b6a77811b6a1"
        },
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          "name": "libdave v1.2.0 release notes",
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        },
        {
          "name": "Discord Audio and Video End-to-End Encryption (DAVE) Protocol Whitepaper",
          "tags": [
            "technical-description"
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          "url": "https://daveprotocol.com/"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/discord/libdave"
        }
      ],
      "title": "Improper MLS Welcome roster validation in Discord libdave allows unauthorized group membership",
      "x_generator": {
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  },
  "cveMetadata": {
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    "assignerShortName": "Bugcrowd",
    "cveId": "CVE-2026-104480",
    "datePublished": "2026-10-02T00:57:55.648Z",
    "dateReserved": "2026-10-02T00:57:11.860Z",
    "dateUpdated": "2026-10-02T18:18:52.157Z",
    "state": "PUBLISHED"
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}