{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84731", "assignerOrgId": "2ffdacf6-8681-47df-b023-4f11abd61c1d", "state": "PUBLISHED", "assignerShortName": "Nutanix", "dateReserved": "2026-09-02T06:41:54.722Z", "datePublished": "2026-10-15T17:10:29.432Z", "dateUpdated": "2026-10-15T19:14:57.185Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "2ffdacf6-8681-47df-b023-4f11abd61c1d", "shortName": "Nutanix", "dateUpdated": "2026-10-15T17:10:29.432Z"}, "title": "Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS", "datePublic": "2026-10-15T17:11:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-290", "description": "CWE-290 Authentication bypass by spoofing", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-302", "description": "CWE-302 Authentication bypass by Assumed-Immutable data", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "affected": [{"vendor": "Nutanix", "product": "Acropolis Operating System (AOS)", "modules": ["Prism Gateway"], "versions": [{"status": "affected", "version": "0", "lessThan": "7.3.1.18", "changes": [{"at": "7.3.1.18", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "7.5", "lessThan": "7.5.2", "changes": [{"at": "7.5.2", "status": "unaffected"}], "versionType": "custom"}, {"status": "affected", "version": "7.6", "lessThan": "7.6.0.8", "changes": [{"at": "7.6.0.8", "status": "unaffected"}], "versionType": "custom"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "7.3.1.18"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.5", "versionEndExcluding": "7.5.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:nutanix:aos_:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.6", "versionEndExcluding": "7.6.0.8"}]}]}], "descriptions": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "base64": false, "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>"}]}], "tags": ["x_api-security", "x_unauthenticated-access", "x_prism-gateway", "x_aos", "x_pre-auth", "x_rce"], "references": [{"url": "https://download.nutanix.com/alerts/Security_Advisory_0058.pdf", "tags": ["vendor-advisory"]}, {"url": "https://portal.nutanix.com/page/documents/list?type=software&filterKey=software&filterVal=AOS", "tags": ["release-notes"]}, {"url": "https://www.nutanix.com/support", "tags": ["x_support"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "PROOF_OF_CONCEPT", "Safety": "NEGLIGIBLE", "Automatable": "YES", "Recovery": "USER", "valueDensity": "CONCENTRATED", "vulnerabilityResponseEffort": "HIGH", "providerUrgency": "RED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.3, "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"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV2_0": {"version": "2.0", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 10, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"other": {"type": "ssvc", "content": {"options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CNA", "version": "2.0.3"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "configurations": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "base64": false, "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."}]}], "workarounds": [{"lang": "en", "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\u00a0the 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.", "supportingMedia": [{"type": "text/html", "base64": false, "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>&nbsp;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>"}]}], "solutions": [{"lang": "en", "value": "Upgrade affected Nutanix AOS deployments to version\u00a07.3.1.18, 7.5.2, 7.6.0.8\u00a0or later fixed releases.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Upgrade affected Nutanix AOS deployments to version&nbsp;<b>7.3.1.18, 7.5.2, 7.6.0.8</b>&nbsp;or later fixed releases.<br></p>"}]}], "exploits": [{"lang": "en", "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Proof-of-concept exploitation was validated during responsible disclosure. No public exploit code or automated attack toolkits are currently known to be publicly distributed.<br></p>"}]}], "timeline": [{"time": "2026-08-26T17:47:00.000Z", "lang": "en", "value": "Vulnerability reported to Nutanix via HackerOne"}, {"time": "2026-08-27T20:46:00.000Z", "lang": "en", "value": "Proof of concept validated."}, {"time": "2026-09-17T13:08:00.000Z", "lang": "en", "value": "Remediation verified across affected release branches."}, {"time": "2026-09-22T17:27:00.000Z", "lang": "en", "value": "Fix integrated into AOS maintenance releases."}, {"time": "2026-10-04T18:30:00.000Z", "lang": "en", "value": "AOS version 7.6.0.8 released."}, {"time": "2026-10-05T18:30:00.000Z", "lang": "en", "value": "AOS version 7.3.1.18 released."}, {"time": "2026-10-12T18:30:00.000Z", "lang": "en", "value": "AOS version 7.5.2 released."}, {"time": "2026-10-15T17:11:00.000Z", "lang": "en", "value": "Public security advisory and CVE published."}], "credits": [{"lang": "en", "value": "Brandon McGrath (mez-0)", "type": "reporter"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-84731", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T17:29:00.505460Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T19:14:57.185Z"}}]}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "modules": ["Prism Gateway"], "product": "Acropolis Operating System (AOS)", "vendor": "Nutanix", "versions": [{"changes": [{"at": "7.3.1.18", "status": "unaffected"}], "lessThan": "7.3.1.18", "status": "affected", "version": "0", "versionType": "custom"}, {"changes": [{"at": "7.5.2", "status": "unaffected"}], "lessThan": "7.5.2", "status": "affected", "version": "7.5", "versionType": "custom"}, {"changes": [{"at": "7.6.0.8", "status": "unaffected"}], "lessThan": "7.6.0.8", "status": "affected", "version": "7.6", "versionType": "custom"}]}], "source": "2ffdacf6-8681-47df-b023-4f11abd61c1d"}], "cveTags": [], "descriptions": [{"lang": "en", "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. 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