{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74039", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-14T14:06:40.512Z", "datePublished": "2026-08-18T17:26:12.871Z", "dateUpdated": "2026-08-18T17:26:12.871Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-18T17:26:12.871Z"}, "title": "Wazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_context", "descriptions": [{"lang": "en", "value": "Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers."}], "datePublic": "2026-08-18T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "type": "CWE"}, {"lang": "en", "cweId": "CWE-1333", "description": "Inefficient Regular Expression Complexity", "type": "CWE"}]}], "affected": [{"vendor": "Wazuh", "product": "wazuh-manager", "repo": "https://github.com/wazuh/wazuh", "defaultStatus": "unaffected", "versions": [{"version": "4.0.0", "status": "affected", "versionType": "semver", "lessThan": "4.14.7"}, {"version": "5.0.0-beta2", "status": "affected", "versionType": "semver"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}}], "references": [{"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q", "name": "GitHub Security Advisory (GHSA-5vh8-34r8-q74q)", "tags": ["vendor-advisory"]}, {"url": "https://github.com/wazuh/wazuh/pull/37034", "name": "Pull Request", "tags": ["patch"]}, {"url": "https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-context", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "APhuongKMA", "type": "reporter"}, {"lang": "en", "value": "jepalfer", "type": "remediation developer"}], "solutions": [{"lang": "en", "value": "Upgrade the affected package to 4.14.7 or later."}], "timeline": [{"time": "2026-05-29T00:00:00.000Z", "lang": "en", "value": "Reported to the Wazuh security team"}], "source": {"discovery": "EXTERNAL"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "wazuh-manager", "repo": "https://github.com/wazuh/wazuh", "vendor": "Wazuh", "versions": [{"lessThan": "4.14.7", "status": "affected", "version": "4.0.0", "versionType": "semver"}, {"status": "affected", "version": "5.0.0-beta2", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wazuh 4.0.0 before 4.14.7 and 5.0.0-beta2 contain a denial of service vulnerability that allows authenticated attackers with allow_run_as enabled to exhaust CPU resources by submitting arbitrarily deeply nested JSON structures to the POST /security/user/authenticate/run_as endpoint. Attackers can repeatedly submit malformed auth_context bodies with unlimited nesting depth to cause the API framework to consume excessive CPU, denying service to all other API consumers."}], "id": "CVE-2026-74039", "lastModified": "2026-08-18T18:19:33.760", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-08-18T18:19:33.760", "references": [{"source": "[email protected]", "url": "https://github.com/wazuh/wazuh/pull/37034"}, {"source": "[email protected]", "url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-5vh8-34r8-q74q"}, {"source": "[email protected]", "url": "https://www.vulncheck.com/advisories/wazuh-api-dos-via-deeply-nested-json-auth-context"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}, {"lang": "en", "value": "CWE-1333"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"created": "2026-08-18T18:30:16.285941+00:00", "updated": "2026-08-18T18:30:16.285946+00:00", "vendors": []}