CVE-2026-84731
Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS
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.
INFO
Published Date :
Oct. 15, 2026, 6:17 p.m.
Last Modified :
Oct. 15, 2026, 8:17 p.m.
Remotely Exploit :
Yes !
Source :
2ffdacf6-8681-47df-b023-4f11abd61c1d
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 2ffdacf6-8681-47df-b023-4f11abd61c1d | |||||
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | 2ffdacf6-8681-47df-b023-4f11abd61c1d | |||||
| CVSS 3.1 | CRITICAL | 2ffdacf6-8681-47df-b023-4f11abd61c1d | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE | ||||
| CVSS 4.0 | CRITICAL | 2ffdacf6-8681-47df-b023-4f11abd61c1d | ||||
| CVSS 4.0 | CRITICAL | 2ffdacf6-8681-47df-b023-4f11abd61c1d |
Solution
- Apply the vendor patch for Nutanix Prism Element.
- Review and secure administrative API endpoints.
- Validate authentication filter configurations.
- Monitor for unauthorized access attempts.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-84731.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-84731 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-84731
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-84731 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-84731 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-84731', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-15T17:29:00.505460Z'} -
New CVE Received by 2ffdacf6-8681-47df-b023-4f11abd61c1d
Oct. 15, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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:N/AU:Y/R:U/V:C/RE:H/U:Red Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V2 (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CWE CWE-306 Added CWE CWE-290 Added CWE CWE-302 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/84xxx/CVE-2026-84731.json">CVE-2026-84731</a> Added Reference https://download.nutanix.com/alerts/Security_Advisory_0058.pdf Added Reference https://portal.nutanix.com/page/documents/list?type=software&filterKey=software&filterVal=AOS Added Reference https://www.nutanix.com/support Added SSVC {'role': 'CNA', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3'}