CVE-2026-95765 in Fabric Composer
Summary
by MITRE • 11/03/2026
A sensitive information disclosure vulnerability exists in the web-based management interface of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated remote attacker to obtain sensitive information.
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Analysis
by VulDB Data Team • 11/03/2026
The identified security flaw resides within the web-based administrative interface of Hewlett Packard Enterprise (HPE) Networking Fabric Composer, a centralized management platform designed for simplifying the configuration and monitoring of virtualized network environments. This vulnerability is classified as a critical information disclosure issue that stems from insufficient access control mechanisms on specific endpoints or API calls exposed by the application server. The core technical deficiency involves the failure to enforce proper authentication checks before processing requests directed at sensitive data retrieval functions. Consequently, an attacker who does not possess valid administrative credentials can interact with these unprotected interfaces directly through standard HTTP methods such as GET or POST, bypassing the intended security boundaries of the system.
From a technical perspective, this flaw aligns closely with CWE-200, which defines exposure of sensitive information to an unauthorized actor, and often correlates with CWE-862 regarding missing authorization checks in web applications. The vulnerability likely manifests when specific URLs or API endpoints are accessible without requiring session validation tokens or login credentials. This misconfiguration allows the remote exploitation vector to operate over a network connection, meaning that any entity capable of reaching the management interface's IP address and port can attempt to exploit this weakness. The attacker does not need prior access to the system nor do they require complex social engineering tactics; simple automated tools or manual requests via web browsers or command-line utilities like curl are sufficient to trigger the data leak.
The operational impact of exploiting this vulnerability is severe, as it grants an unauthenticated remote attacker direct visibility into sensitive internal data. Depending on the specific implementation details and version of HPE Networking Fabric Composer affected, disclosed information may include network topology maps, configuration files containing IP addresses and VLAN settings, user account lists with associated roles, or potentially authentication tokens if stored insecurely in session cookies or local storage. This exposure facilitates further attacks by providing adversaries with a detailed map of the infrastructure's architecture and security posture. With this intelligence, an attacker can perform targeted reconnaissance to identify high-value targets within the network, plan lateral movement strategies, or craft more sophisticated phishing campaigns against specific administrators based on revealed user details.
This incident also maps directly to MITRE ATT&CK technique T1087, which covers Account Discovery, and potentially T1539 if credentials are harvested for subsequent access. The ability to enumerate accounts without authentication significantly lowers the barrier of entry for malicious actors aiming to compromise critical network infrastructure components managed by Fabric Composer. In enterprise environments where this software is deployed, such a breach could lead to significant downtime, data loss, or complete takeover of virtualized networking resources if combined with other vulnerabilities like weak password policies or additional injection flaws in authenticated interfaces.
To mitigate the risks associated with this vulnerability, immediate remediation actions should focus on patching the HPE Networking Fabric Composer software to the latest version released by Hewlett Packard Enterprise, which includes fixes for these access control deficiencies. Administrators must verify that all management interfaces are not exposed directly to untrusted networks such as the public internet and instead reside within a secure administrative VLAN or behind a robust firewall with strict IP whitelisting rules. Additionally, implementing multi-factor authentication for any remaining accessible services and conducting regular vulnerability scans can help detect similar misconfigurations before they are exploited. Security teams should also review web server configurations to ensure that default pages and diagnostic endpoints are disabled in production environments, adhering to the principle of least privilege by exposing only those functionalities strictly necessary for operational management.