CVE-2026-95775 in Fabric Composer
Summary
by MITRE • 11/03/2026
A local information disclosure vulnerability exists in the underlying operating system of HPE Networking Fabric Composer. Successful exploitation could allow a low-privileged local attacker to read certain files on the underlying operating system.
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Analysis
by VulDB Data Team • 11/03/2026
The identified security flaw resides within the underlying operating environment of Hewlett Packard Enterprise (HPE) Networking Fabric Composer, presenting a significant risk for unauthorized data access through privilege escalation or lateral movement techniques. This vulnerability is classified as an information disclosure issue that permits low-privileged local attackers to bypass intended access controls and read sensitive files from the host system. The presence of such a flaw indicates a failure in proper isolation mechanisms between the application layer running Fabric Composer and the underlying operating system kernel, allowing processes with limited permissions to traverse directory boundaries or exploit misconfigured file system permissions to expose confidential data.
From a technical perspective, this vulnerability aligns closely with Common Weakness Enumeration (CWE) categories such as CWE-200: Exposure of Sensitive Information to an Unauthorized Actor and potentially CWE-732: Incorrect Permission Assignment for Critical Resource. The root cause typically involves insufficient validation of user roles when accessing system-level resources or the improper configuration of file access control lists that grant read permissions to groups with lower privilege levels than intended by the vendor's security baseline. In virtualized or containerized deployments, this may also relate to weaknesses in how the orchestration layer interacts with host namespaces, allowing a compromised container or service account to escape its sandbox and interact directly with the host file system.
The operational impact of exploiting this vulnerability is primarily centered on confidentiality rather than integrity or availability. An attacker who successfully leverages this flaw can extract sensitive configuration files, cryptographic keys, database credentials, or internal network topology details stored within the operating system's directories. This information serves as critical intelligence for subsequent attack phases, enabling further reconnaissance and potentially facilitating more severe compromises such as remote code execution or complete infrastructure takeover. The exposure of these artifacts undermines the security posture of the entire data center fabric managed by HPE Fabric Composer, as attackers can use harvested credentials to authenticate into other network devices or manipulate management interfaces without detection.
Mitigation strategies must focus on both immediate remediation and long-term hardening practices. Administrators should apply the latest vendor-provided patches that address these permission misconfigurations immediately upon release. In addition to patching, it is essential to enforce strict least-privilege principles by auditing file system permissions and ensuring that service accounts operate with only the minimum necessary access rights. Implementing robust monitoring solutions can help detect anomalous file access patterns indicative of exploitation attempts. Furthermore, organizations should review their deployment architectures to ensure that management planes are isolated from data planes using network segmentation and virtualization boundaries that prevent local privilege escalation paths from being exploited by compromised low-privileged accounts within the Fabric Composer environment.