CVE-2026-95762 in Fabric Composer
Summary
by MITRE • 11/03/2026
An insufficient session expiration 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 administrative attacker to maintain persistent access to the affected system.
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Analysis
by VulDB Data Team • 11/03/2026
The identified vulnerability resides within the application layer security controls of the HPE Networking Fabric Composer, specifically targeting its API session management mechanisms. This flaw is classified as CWE-613, Insufficient Session Expiration, which indicates a failure in properly invalidating user sessions after a defined period of inactivity or upon logout. In standard secure implementations, session tokens are bound to strict time limits and context constraints to ensure that if an attacker gains access through compromised credentials or other means, their window for exploitation is limited by the system's automatic termination of active connections. However, in this specific instance, the API fails to enforce these expiration policies under certain conditions, allowing sessions to remain valid indefinitely or until manually terminated by a privileged administrator who may not be aware of the lingering session activity.
The operational impact of this vulnerability centers on the potential for persistent unauthorized access within the network infrastructure management plane. Because the Fabric Composer serves as a central point for managing and configuring networking elements, an authenticated administrative attacker can leverage these long-lived sessions to maintain continuous control over the system without needing to re-authenticate or exploit additional vulnerabilities. This persistence allows the adversary to execute configuration changes, monitor traffic patterns, extract sensitive network topology data, or deploy malicious policies that could disrupt service availability or compromise downstream devices connected through the fabric. The risk is exacerbated by the fact that the preconditions required for exploitation are outside the attacker's control, suggesting a systemic design flaw rather than an easily mitigatable misconfiguration on individual endpoints.
From a threat intelligence perspective, this vulnerability aligns with ATT&CK technique T1078, Valid Accounts, specifically regarding the maintenance of access through persistent credentials or sessions. The ability to retain administrative privileges over time enables lateral movement and deeper penetration into critical infrastructure components. Attackers often rely on such session persistence to avoid detection mechanisms that trigger on repeated login attempts or short-lived credential usage. By maintaining a stable foothold in the management plane, adversaries can conduct long-term reconnaissance and data exfiltration with reduced risk of immediate discovery by security monitoring tools that focus primarily on initial access vectors rather than sustained administrative activity.
Mitigation strategies must address both technical controls and operational procedures to neutralize this threat vector. Immediate remediation involves applying vendor-provided patches or updates that enforce strict session timeout policies, ensuring that all API sessions expire after a predefined period of inactivity regardless of external conditions. Administrators should also implement automated monitoring solutions capable of detecting anomalous session durations or unexpected administrative actions during off-hours to identify potential exploitation attempts early. Furthermore, enforcing multi-factor authentication and role-based access control can limit the blast radius if an account is compromised, while regular audits of active sessions help ensure that no unauthorized persistent connections remain open within the management infrastructure.