{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.3.6"
              },
              {
                "introduced": "3.4.0"
              },
              {
                "fixed": "3.4.5"
              },
              {
                "introduced": "4.0.0"
              },
              {
                "fixed": "4.2.7"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98e61b941fb9915614e0b962588817efb795020c"
            },
            {
              "fixed": "e590976beb69f98faa44da7653f4ab55c5e0e61a"
            },
            {
              "introduced": "5eaeffc8e2244b73dd13fd2562c9684ad289997b"
            },
            {
              "fixed": "4054894738817f5a2125e6e6b18e79d92c75ab33"
            }
          ],
          "repo": "https://github.com/socketio/socket.io",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2m8v-j782-fhvr"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-20",
      "CWE-754"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69185.json"
  },
  "details": "Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 4.2.7, 3.4.5, and 3.3.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This vulnerability is fixed in 4.2.7, 3.4.5, and 3.3.6.",
  "id": "CVE-2026-69185",
  "modified": "2026-08-04T11:31:16.062642284Z",
  "published": "2026-08-03T19:09:10.073Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69185.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/socketio/socket.io/commit/7c6ef571a00656718e9e05e3b948fd1758b2a7b4"
    },
    {
      "type": "FIX",
      "url": "https://github.com/socketio/socket.io/commit/9c6323e5cde41bd75df3379b5fc9293664a5f240"
    },
    {
      "type": "FIX",
      "url": "https://github.com/socketio/socket.io/commit/ced94ffa3ac020a8f3c14eb98a3bf34acb14d291"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/socketio/socket.io/security/advisories/GHSA-2m8v-j782-fhvr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69185"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Socket.IO: Zero-attachment Memory Exhaustion"
}