{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.24.11"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "69a97b3b39cc218f044f1c8896f4d3d8757bb394"
            }
          ],
          "repo": "https://github.com/nanomq/nanomq",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qq2v-xvxg-3hvf"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47276.json"
  },
  "details": "In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `properties_parse()` allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to `/api/v4/mqtt/publish` with `user_properties` as a JSON array instead of a JSON object. The crash occurs because `strlen()` is called on a NULL `item-\u003estring` pointer when iterating over array elements. An authenticated attacker can exploit this to crash the NanoMQ broker process. This is patched in version 0.24.14.",
  "id": "CVE-2026-47276",
  "modified": "2026-07-25T03:56:47.176034294Z",
  "published": "2026-07-20T16:44:44.300Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47276.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-qq2v-xvxg-3hvf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47276"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "NULL Pointer Dereference in REST API properties_parse via Malformed user_properties"
}