Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user

{
  "id": "c0d864eab7bc6f98fb91dfe34a1e657a2e5471ea8d115161e8c61d045a15cda9",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-74035",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user",
    "summary": "Wazuh versions from 4.6.0 before 4.14.8 contain an authentication bypass vulnerability where security.update_user places the reserved user guard and password policy inside a falsy truthiness check. A delegated user administrator can send an empty password to the user update endpoint, bypassing the reserved user guard to take over the wazuh superuser account and authenticate with empty credentials.",
    "evidence": "cve:CVE-2026-74035",
    "products": [
      {
        "name": {
          "value": "wazuh-manager",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-74035",
      "aliases": [
        "CVE-2026-74035"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 8.6,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "HIGH",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 7.2,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "confidentialityImpact": "HIGH"
          }
        }
      ],
      "affected": [
        {
          "repo": "https://github.com/wazuh/wazuh",
          "vendor": "Wazuh",
          "product": "wazuh-manager",
          "versions": [
            {
              "status": "affected",
              "version": "4.6.0",
              "lessThan": "4.14.8",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.14.8",
              "versionType": "semver"
            }
          ],
          "packageURL": "pkg:github/wazuh/wazuh",
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T14:15:45.534Z",
      "provider": "cve",
      "references": [
        "https://github.com/wazuh/wazuh/security/advisories/GHSA-27gv-q7q6-f5qh",
        "https://github.com/wazuh/wazuh/releases/tag/v4.14.8",
        "https://www.vulncheck.com/advisories/wazuh-4.6.0-before-4.14.8-authentication-bypass-via-empty-password-in-update-user"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-74035",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-13T16:40:41.078553Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-13T16:43:30.956Z"
            }
          }
        ],
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-26T14:15:45.534Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-74035",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 311547,
  "published_at": "2026-10-13T13:27:28.652+00:00"
}