Riskcovery

CVE-2026-84731

Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS

State
Published
Severity
9.3 Critical
Published
Oct 15, 2026
Updated
Oct 15, 2026
Reserved
Sep 2, 2026

Read the record on cve.org

Description

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.

Consequently, 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.

Scores

CVSSScoreVectorSource
4.09.3 CriticalCVSS: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:RedNutanix
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNutanix
2.010.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:CNutanix

Weaknesses

  • CWE-306 Missing authentication for critical function
  • CWE-290 Authentication bypass by spoofing
  • CWE-302 Authentication bypass by Assumed-Immutable data

Affected Products

ProductVersions
Acropolis Operating System (AOS)Nutanix
  • before 7.3.1.18Affectedfrom 7.3.1.18Not affected
  • 7.5 to before 7.5.2Affectedfrom 7.5.2Not affected
  • 7.6 to before 7.6.0.8Affectedfrom 7.6.0.8Not affected

References

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