CVE-2026-84731Network attack vector

Unauthenticated root execution via trusted management header

Published Oct 15, 2026 · Updated Oct 15, 2026

Nutanix Acropolis Operating System (AOS) allows remote attackers to execute root commands via Prism Element authentication bypass. The supplied report states that misconfigured authentication filters accept a crafted internal management HTTP header and issue a privileged JSESSIONID session cookie. Exploitation requires network access to Prism Element and grants cluster-wide Controller VM control according to that report; independent public confirmation was not retrievable.

CVSS severityUnavailable
Unscored
EPSS probability1.28%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Nutanix Acropolis Operating System (AOS) allows remote attackers to execute root commands via Prism Element authentication bypass. The supplied report states that misconfigured authentication filters accept a crafted internal management HTTP header and issue a privileged JSESSIONID session cookie. Exploitation requires network access to Prism Element and grants cluster-wide Controller VM control according to that report; independent public confirmation was not retrievable.

The record

CVE
CVE-2026-84731
Published
Oct 15, 2026
Updated
Oct 15, 2026
Vendor
Nutanix
Product
Nutanix Acropolis Operating System (AOS)
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <7.3.1.18 changes=[{"at":"7.3.1.18","status":"unaffected"}]
  2. Affected versionversion=7.5 <7.5.2 changes=[{"at":"7.5.2","status":"unaffected"}]
  3. Affected versionversion=7.6 <7.6.0.8 changes=[{"at":"7.6.0.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nutanix · Nutanix Acropolis Operating System (AOS)version=0 <7.3.1.18 changes=[{"at":"7.3.1.18","status":"unaffected"}]; version=7.5 <7.5.2 changes=[{"at":"7.5.2","status":"unaffected"}]; version=7.6 <7.6.0.8 changes=[{"at":"7.6.0.8","status":"unaffected"}]

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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