CVE-2026-95760 in Fabric Composer
Summary
by MITRE • 11/03/2026
A privilege escalation vulnerability exists in the API of HPE Networking Fabric Composer if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an authenticated attacker with low privileges to gain elevated privileges on the affected system.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 11/03/2026
The identified security flaw resides within the application programming interface of Hewlett Packard Enterprise Networking Fabric Composer, presenting a critical risk vector for privilege escalation. This vulnerability allows an individual who has already obtained authentication credentials with restricted or low-level access rights to execute actions that are normally reserved for administrators or users with higher clearance levels. The core technical nature of this issue involves improper authorization checks within the API endpoints, where the system fails to adequately verify whether the authenticated user possesses the necessary permissions to perform specific administrative operations. This architectural weakness effectively bypasses the intended role-based access control mechanisms, enabling a lower-privileged entity to manipulate internal states or configurations that should remain immutable under their current security context.
The operational impact of this vulnerability is severe, as it compromises the integrity and confidentiality of the entire network management infrastructure managed by Fabric Composer. By gaining elevated privileges, an attacker can potentially reconfigure network policies, alter routing tables, disable security monitoring features, or access sensitive configuration data that was previously protected from low-level users. This escalation transforms a minor breach into a critical compromise, allowing for lateral movement within the enterprise environment and facilitating further attacks against other connected systems. The ability to modify administrative settings without proper authorization undermines the fundamental principle of least privilege, which is essential for maintaining robust network security postures in complex data center environments.
Exploitation of this flaw requires specific preconditions that are largely outside the direct control of the attacker, such as the existence of valid low-privilege credentials and access to the affected API endpoints. Once these conditions are met, however, the exploitation process is relatively straightforward due to the lack of sufficient validation on server-side request handling. The vulnerability aligns with Common Weakness Enumeration category CWE-269, which addresses Improper Privilege Management, specifically highlighting failures in enforcing role-based access controls. Furthermore, from a tactical perspective related to the MITRE ATT&CK framework, this behavior corresponds to techniques involving privilege escalation and abuse of existing valid accounts, allowing adversaries to maintain persistence and expand their influence within the compromised network segment without triggering immediate detection mechanisms associated with unauthorized login attempts or brute force attacks.
To mitigate this risk, it is imperative that organizations apply the vendor-provided security patches immediately upon availability, as these updates typically include corrected authorization logic for the affected API endpoints. In addition to patching, administrators should enforce strict role-based access control policies, ensuring that only essential personnel have access to Fabric Composer interfaces and that low-privilege accounts are granted minimal permissions necessary for their specific functions. Network segmentation strategies should also be reviewed to limit exposure of management planes to untrusted networks, and multi-factor authentication should be implemented where possible to add an additional layer of verification beyond simple password-based credentials. Continuous monitoring of API access logs for anomalous privilege escalation attempts can further aid in early detection and response to potential exploitation activities.