Description

A denial-of-service vulnerability exists in the web-based management interface of HPE Networking Fabric Composer that could allow an authenticated low privilege operator user to cause a denial of service. Successful exploitation could allow an attacker to disrupt the availability of the affected interface.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.5",
  "pubDate": "2026-09-01T20:17:22.090Z",
  "pubdate": "2026-09-01T20:17:22.090Z",
  "executiveSummary": "A denial-of-service (DoS) vulnerability has been identified within the web-based management interface of HPE Networking Fabric Composer.\nThe vulnerability allows an authenticated operator with low-level privileges to disrupt the availability of the management interface, effectively preventing administrators from managing the network fabric.\nThis flaw resides in the interface's request handling logic, which is susceptible to exploitation by users possessing legitimate, low-privileged credentials.\nThe primary impact of a successful exploitation is a complete loss of accessibility to the web management console, leading to a degradation of operational management capabilities.\nThere are no requirements for remote network access beyond having an authenticated session, meaning the attack surface is limited to the management interface itself.\nThe risk is primarily operational, as the vulnerability does not inherently result in arbitrary code execution or data exfiltration, but severely impacts the availability of critical infrastructure management tools.",
  "technicalDetails": "The vulnerability manifests within the web-based management interface of HPE Networking Fabric Composer, specifically affecting the component responsible for processing user-initiated requests.\nRoot cause analysis indicates that the interface fails to properly sanitize or constrain specific operations requested by low-privilege users. This allows an authenticated attacker to trigger an unhandled exception or resource exhaustion condition during the processing of a maliciously crafted request.\nThe attack flow initiates when an attacker, already authenticated as a low-privilege operator, transmits a specifically formatted payload to a vulnerable endpoint within the web management interface. By targeting specific parameters or API calls that the interface is not configured to handle securely, the attacker can cause the underlying process or service managing the web interface to crash or enter a hung state.\nUpon reaching the vulnerable function, the application fails to validate the scope of the operator's permissions relative to the resource consumption profile of the requested action. This logic flaw permits the resource-intensive operation to execute, leading to memory exhaustion or a fatal thread termination.\nThe exploitation does not require advanced technical capabilities, only access to the management UI and valid credentials at the operator privilege level. Once the vulnerable process crashes, the web interface becomes unresponsive to all users, necessitating manual service intervention or a full system restart to restore operational status.\nBecause the vulnerability is intrinsic to the management interface's request handling, the impact remains confined to the availability of the control plane interface itself. The underlying data plane, which manages the actual network fabric traffic, remains unaffected; however, the lack of management visibility and control during a DoS event constitutes a significant operational risk for administrators responsible for fabric orchestration."
}