{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.4.0"
              },
              {
                "fixed": "4.14.7"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "2477e9fa50bc1424e834ac8401ce2450a5978e75"
            },
            {
              "fixed": "a42268a27c555d9348d5598fb8751eaf4c8e9024"
            }
          ],
          "repo": "https://github.com/wazuh/wazuh",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mr7j-w2m4-vw5j"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74046.json"
  },
  "details": "Wazuh 4.4.0 before 4.14.7 contains a denial of service vulnerability in the fdecompress_files() function within cluster.py that allows authenticated cluster peers to exhaust memory by supplying a malicious synchronization archive without decompressed size limits. Attackers holding a valid cluster Fernet key can upload a small, highly compressed zip bomb archive that forces wazuh-clusterd on the master node to decompress the full payload into memory, causing memory exhaustion and service disruption.",
  "id": "CVE-2026-74046",
  "modified": "2026-08-20T03:30:25.639010806Z",
  "published": "2026-08-18T17:27:24.053Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74046.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-mr7j-w2m4-vw5j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74046"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/wazuh-dos-via-fdecompress-files-zip-bomb"
    },
    {
      "type": "FIX",
      "url": "https://github.com/wazuh/wazuh/pull/37119"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wazuh/wazuh"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Wazuh 4.4.0 \u003c 4.14.7 DoS via fdecompress_files() Zip Bomb"
}