CVE-2026-95777 in Fabric Composer
Summary
by MITRE • 11/03/2026
A sensitive information disclosure vulnerability exists in the management interface of HPE Networking Fabric Composer. Successful exploitation could allow a low-privileged attacker to obtain certain sensitive information stored on the affected system.
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Analysis
by VulDB Data Team • 11/03/2026
The identified vulnerability resides within the administrative management interface of Hewlett Packard Enterprise (HPE) Networking Fabric Composer, representing a critical class of security flaws known as insecure direct object references or improper access control mechanisms. This specific weakness allows an attacker with low-privileged credentials to bypass intended restrictions and retrieve sensitive data that should be restricted to higher-level administrators or system components. The core technical flaw stems from the application's failure to properly validate user permissions when processing requests for resource retrieval, enabling unauthorized actors to query internal endpoints and extract configuration details, network topology maps, credential hashes, or other proprietary operational metrics stored on the server.
From a classification perspective, this vulnerability aligns with CWE-200: Information Exposure, which encompasses any situation where an information system inadvertently provides more data than intended to users who are not authorized to receive it. Furthermore, in the context of the MITRE ATT&CK framework, this behavior is indicative of T1530: Data from Local System, a technique used by adversaries to collect and exfiltrate sensitive files or database contents directly from compromised systems. The exploitation vector typically involves crafting specific HTTP requests that target internal API endpoints without requiring elevated privileges, leveraging the trust relationship between the management interface and its underlying data stores.
The operational impact of this disclosure is significant for organizations relying on HPE Networking Fabric Composer for centralized network automation and policy enforcement. Exposure of sensitive information can lead to a cascade of secondary attacks, including privilege escalation, where attackers use gathered credentials or configuration details to gain higher-level access. It also facilitates lateral movement within the enterprise network by revealing internal IP addresses, device models, and security policies that adversaries can exploit to bypass perimeter defenses. Additionally, the leakage of proprietary architectural data compromises intellectual property and may violate regulatory compliance requirements such as GDPR or HIPAA if personally identifiable information is inadvertently exposed through misconfigured management interfaces.
Mitigation strategies must focus on strict access control enforcement and input validation within the application layer. Administrators should ensure that all API endpoints enforce role-based access controls (RBAC) rigorously, verifying user privileges before returning any data payload. Implementing web application firewalls with rules specifically targeting unauthorized enumeration attempts can provide an additional layer of defense. Regular security audits and penetration testing focused on authentication bypasses are essential to identify such gaps early. Furthermore, HPE should be consulted for the latest patches that address these permission validation logic errors, ensuring that the management interface adheres to the principle of least privilege by defaulting to deny access unless explicitly permitted.