CVE-2026-95774 in Fabric Composer
Summary
by MITRE • 11/03/2026
A sensitive information disclosure vulnerability exists in HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated remote attacker to obtain sensitive information from the affected system.
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Analysis
by VulDB Data Team • 11/03/2026
The identified vulnerability within Hewlett Packard Enterprise (HPE) Networking Fabric Composer represents a critical failure in access control mechanisms, specifically categorized under CWE-200 as Exposure of Sensitive Information to an Unauthorized Actor. This flaw allows unauthenticated remote attackers to retrieve confidential data from the affected system without requiring valid credentials or prior authentication. The existence of such a vulnerability indicates that specific endpoints or API interfaces within the Fabric Composer application are accessible via standard network protocols, likely HTTP or HTTPS, and fail to enforce proper authorization checks before processing requests for sensitive resources. This type of misconfiguration is often rooted in improper implementation of security controls where default configurations retain administrative access enabled by default, or where error handling mechanisms inadvertently leak internal system details that can be leveraged for further reconnaissance.
From a technical perspective, the exploitation vector relies on the attacker's ability to send crafted requests directly to exposed services running on the Fabric Composer infrastructure. Since no authentication is required, the attack does not involve complex bypass techniques but rather simple enumeration and retrieval of data stored in memory or accessible via unsecured API endpoints. The sensitive information disclosed could include network topology maps, configuration files containing credentials, session tokens, or internal IP addresses associated with managed switches and routers. This exposure compromises the confidentiality integrity pillar of security by revealing architectural details that are critical for maintaining a secure network environment. Attackers can utilize this data to map out the entire fabric structure, identifying potential entry points and understanding how different components interact, which significantly lowers the barrier for subsequent attacks such as privilege escalation or lateral movement within the network.
The operational impact of this vulnerability extends beyond simple data leakage. By gaining visibility into the internal workings of the HPE Networking Fabric Composer, an attacker can perform sophisticated reconnaissance to plan targeted attacks against specific devices in the managed fabric. Knowledge of the underlying architecture allows for more precise exploitation of other potential weaknesses in connected switches or controllers. Furthermore, if credentials or session tokens are exposed, there is a direct risk of account compromise leading to full administrative control over the network infrastructure. This could result in service disruption through malicious configuration changes, interception of traffic via man-in-the-middle attacks enabled by topology knowledge, or complete loss of availability and integrity for critical business operations dependent on that network fabric. The ability to access this information remotely without authentication makes it particularly dangerous as it can be exploited from any location with network connectivity to the affected system.
Mitigation strategies must focus immediately on restricting access to sensitive interfaces and ensuring strict adherence to security best practices. Administrators should verify that all administrative ports are not exposed to untrusted networks, such as the public internet or general corporate LANs where unauthorized users might reside. Implementing network segmentation to isolate management planes from data planes is essential for reducing the attack surface. Additionally, applying the latest firmware updates provided by HPE is crucial as these often contain patches addressing known access control flaws. Enabling multi-factor authentication and ensuring that all services require strong credential validation before serving any content will prevent unauthenticated access. Regular security audits using vulnerability scanners configured to detect CWE-200 type issues can help identify similar misconfigurations across the infrastructure, while monitoring logs for unusual request patterns associated with information gathering activities provides an early warning system against exploitation attempts aligned with ATT&CK techniques related to Discovery and Collection.