{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "5.0.0-beta3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "da844a6fdafd7388d11114841482596d1efdf5b3"
            }
          ],
          "repo": "https://github.com/wazuh/wazuh",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-jv5p-fhwh-9w55"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67307.json"
  },
  "details": "Wazuh 5.0.0-beta1 (fixed in 5.0.0-beta3) does not validate or override the cluster_name and cluster_node fields in inventory-sync Start FlatBuffer messages, while validating only the agentid against the authenticated agent identity. This allows a low-privileged enrolled agent to spoof cluster attribution in indexed inventory and vulnerability documents by forging wazuh.cluster.name values and influencing the document _id prefix, potentially tampering with inventory records or, in shared-indexer multi-cluster deployments, poisoning another cluster's records when numeric agent IDs collide.",
  "id": "CVE-2026-67307",
  "modified": "2026-08-04T11:31:10.041217564Z",
  "published": "2026-08-01T12:22:18.079Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67307.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-jv5p-fhwh-9w55"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67307"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/wazuh-before-beta3-cluster-attribution-spoofing-via-inventory-sync"
    },
    {
      "type": "FIX",
      "url": "https://github.com/wazuh/wazuh/commit/b3dae02ec9ddcfd449cb61b4c76d180e3e43f79a"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Wazuh before 5.0.0-beta3 Cluster Attribution Spoofing via Inventory Sync"
}