432 lines
20 KiB
JSON
432 lines
20 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-84731",
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"assignerOrgId": "2ffdacf6-8681-47df-b023-4f11abd61c1d",
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"state": "PUBLISHED",
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"assignerShortName": "Nutanix",
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"dateReserved": "2026-09-02T06:41:54.722Z",
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"datePublished": "2026-10-15T17:10:29.432Z",
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"dateUpdated": "2026-10-15T19:14:57.185Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "2ffdacf6-8681-47df-b023-4f11abd61c1d",
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"shortName": "Nutanix",
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"dateUpdated": "2026-10-15T17:10:29.432Z"
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},
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"title": "Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS",
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"datePublic": "2026-10-15T17:11:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-306",
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"description": "CWE-306 Missing authentication for critical function",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-290",
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"description": "CWE-290 Authentication bypass by spoofing",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-302",
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"description": "CWE-302 Authentication bypass by Assumed-Immutable data",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-115",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-115 Authentication Bypass"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "Nutanix",
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"product": "Acropolis Operating System (AOS)",
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"modules": [
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"Prism Gateway"
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],
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "7.3.1.18",
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{
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"at": "7.3.1.18",
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"status": "unaffected"
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}
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],
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"versionType": "custom"
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},
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{
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"status": "affected",
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"version": "7.5",
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"lessThan": "7.5.2",
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"changes": [
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{
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"at": "7.5.2",
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"status": "unaffected"
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}
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],
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"versionType": "custom"
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},
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{
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"status": "affected",
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"version": "7.6",
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"lessThan": "7.6.0.8",
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"changes": [
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{
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"at": "7.6.0.8",
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"status": "unaffected"
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}
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],
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"cpeApplicability": [
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{
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"operator": "OR",
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"operator": "OR",
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "0",
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"versionEndExcluding": "7.3.1.18"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "7.5",
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"versionEndExcluding": "7.5.2"
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"criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*",
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "An unauthenticated remote attacker can bypass authentication and gain full access to administrative API endpoints in Nutanix Prism Element by including a crafted internal management HTTP header. The vulnerability is caused by a misconfiguration in the application's authentication filters.\n\n\n\nConsequently, the server responds with a Set-Cookie header containing a valid JSESSIONID. This session cookie decodes to a JSON Web Token (JWT) granting maximum cluster administrative privileges. Successful exploitation allows the attacker to execute root-level commands on all Controller VMs (CVMs) in the cluster, leading to complete cluster destruction and unauthorized access to VM memory and virtual disks.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>An unauthenticated remote attacker can bypass authentication and gain full access to administrative API endpoints in Nutanix Prism Element by including a crafted internal management HTTP header. The vulnerability is caused by a misconfiguration in the application's authentication filters.</p><p>Consequently, the server responds with a <code>Set-Cookie</code> header containing a valid <code>JSESSIONID</code>. This session cookie decodes to a JSON Web Token (JWT) granting maximum cluster administrative privileges. Successful exploitation allows the attacker to execute root-level commands on all Controller VMs (CVMs) in the cluster, leading to complete cluster destruction and unauthorized access to VM memory and virtual disks.</p>"
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}
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]
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}
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],
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"tags": [
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"x_api-security",
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"x_unauthenticated-access",
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"x_prism-gateway",
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"x_aos",
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"x_pre-auth",
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"x_rce"
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],
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"references": [
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{
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"url": "https://download.nutanix.com/alerts/Security_Advisory_0058.pdf",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://portal.nutanix.com/page/documents/list?type=software&filterKey=software&filterVal=AOS",
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"tags": [
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"release-notes"
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]
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},
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{
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"url": "https://www.nutanix.com/support",
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"tags": [
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"x_support"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subAvailabilityImpact": "HIGH",
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"exploitMaturity": "PROOF_OF_CONCEPT",
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"Safety": "NEGLIGIBLE",
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"Automatable": "YES",
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"Recovery": "USER",
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"valueDensity": "CONCENTRATED",
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"vulnerabilityResponseEffort": "HIGH",
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"providerUrgency": "RED",
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"version": "4.0",
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"baseSeverity": "CRITICAL",
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"baseScore": 9.3,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:H/U:Red"
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseSeverity": "CRITICAL",
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"baseScore": 9.8,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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}
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],
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"cvssV2_0": {
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"version": "2.0",
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"accessVector": "NETWORK",
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"accessComplexity": "LOW",
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"authentication": "NONE",
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"confidentialityImpact": "COMPLETE",
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"integrityImpact": "COMPLETE",
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"availabilityImpact": "COMPLETE",
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"baseScore": 10,
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"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C"
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}
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},
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{
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"other": {
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"type": "ssvc",
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},
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"Automatable": "yes"
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"Technical Impact": "total"
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}
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],
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}
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],
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"configurations": [
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{
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"lang": "en",
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"value": "The vulnerability affects Nutanix AOS versions running Prism Gateway, where the Prism Element management port (9440) is exposed directly to the public internet (or an open network) without a firewall to block malicious traffic.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "The vulnerability affects Nutanix AOS versions running Prism Gateway, where the Prism Element management port (9440) is exposed directly to the public internet (or an open network) without a firewall to block malicious traffic."
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}
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]
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "Organizations can mitigate this issue prior to patching by enforcing the following controls:\n\n * Network Segmentation: Restrict access to the Prism Element management port (9440) strictly to dedicated management VLANs, jump boxes or authorized IP ranges.\n\n * Ingress Traffic Filtering: Configure upstream Web Application Firewalls (WAFs) or ingress reverse proxies to strip specific internal management headers from incoming API requests before they reach the cluster.\n\n\n\nNote on WAF Configuration workaround: Nutanix is willing to securely provide the exact header string via Support to verified existing customers who are temporarily unable to apply the patch.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p><span>Organizations can mitigate this issue prior to patching by enforcing the following controls</span>:</p><ul><li><strong>Network Segmentation:</strong> Restrict access to the Prism Element management port (9440) strictly to dedicated management VLANs, jump boxes or authorized IP ranges.<br></li><li><strong>Ingress Traffic Filtering:</strong> Configure upstream Web Application Firewalls (WAFs) or ingress reverse proxies to strip specific internal management headers from incoming API requests before they reach<span> the cluster.</span><br></li></ul><div><i>Note on WAF Configuration workaround: Nutanix is willing to securely provide the exact header string via Support to verified existing customers who are temporarily unable to apply the patch.</i></div>"
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}
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]
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Upgrade affected Nutanix AOS deployments to version 7.3.1.18, 7.5.2, 7.6.0.8 or later fixed releases.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Upgrade affected Nutanix AOS deployments to version <b>7.3.1.18, 7.5.2, 7.6.0.8</b> or later fixed releases.<br></p>"
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}
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]
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}
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],
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"exploits": [
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{
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"lang": "en",
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"value": "Proof-of-concept exploitation was validated during responsible disclosure. No public exploit code or automated attack toolkits are currently known to be publicly distributed.",
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"supportingMedia": [
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"type": "text/html",
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]
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}
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],
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"timeline": [
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{
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"time": "2026-08-26T17:47:00.000Z",
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"lang": "en",
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"value": "Vulnerability reported to Nutanix via HackerOne"
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},
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{
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"time": "2026-08-27T20:46:00.000Z",
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"lang": "en",
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"value": "Proof of concept validated."
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},
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{
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"time": "2026-09-17T13:08:00.000Z",
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"lang": "en",
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"value": "Remediation verified across affected release branches."
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},
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{
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"time": "2026-09-22T17:27:00.000Z",
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"lang": "en",
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"value": "Fix integrated into AOS maintenance releases."
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},
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{
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"time": "2026-10-04T18:30:00.000Z",
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"lang": "en",
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"value": "AOS version 7.6.0.8 released."
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},
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{
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"time": "2026-10-05T18:30:00.000Z",
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"lang": "en",
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"value": "AOS version 7.3.1.18 released."
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},
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{
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"time": "2026-10-12T18:30:00.000Z",
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"lang": "en",
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"value": "AOS version 7.5.2 released."
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},
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{
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"time": "2026-10-15T17:11:00.000Z",
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"lang": "en",
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"value": "Public security advisory and CVE published."
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Brandon McGrath (mez-0)",
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"type": "reporter"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.5"
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}
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-84731",
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"role": "CISA Coordinator",
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"options": [
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"Technical Impact": "total"
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T17:29:00.505460Z"
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}
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"title": "CISA ADP Vulnrichment",
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} |