CVE-2026-95750 in Fabric Composer
Summary
by MITRE • 11/03/2026
An improper certificate validation vulnerability in HPE Networking Fabric Composer could allow an unauthenticated remote attacker to access sensitive information if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to obtain sensitive information, including credentials.
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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 cryptographic validation mechanisms during secure communication sessions. This flaw is fundamentally rooted in the application's handling of Transport Layer Security certificates, where the software fails to rigorously verify the authenticity and integrity of the certificate presented by remote peers. In standard network security architectures, proper certificate validation ensures that a client or server can confidently establish an encrypted channel with its intended counterpart, thereby preventing man-in-the-middle attacks. However, in this specific instance, the improper implementation allows for scenarios where invalid, expired, self-signed, or otherwise untrusted certificates are accepted without triggering appropriate rejection protocols. This deficiency effectively neutralizes one of the primary defenses against eavesdropping and identity spoofing in networked environments, creating a significant security gap that adversaries can exploit to intercept sensitive data flows.
From an operational perspective, this vulnerability enables unauthenticated remote attackers to gain access to highly sensitive information without needing valid credentials or prior authorization. The impact is severe because it compromises the confidentiality of communications passing through the Fabric Composer interface. Attackers who successfully leverage this flaw can perform passive eavesdropping on network traffic, capturing plaintext data that should have been encrypted and authenticated. This includes potentially critical operational details such as administrative credentials, configuration files containing sensitive infrastructure parameters, and other proprietary information essential for maintaining network integrity. The requirement for certain preconditions outside the attacker's control suggests that while exploitation is possible remotely, it may depend on specific environmental configurations or default settings within the HPE environment, which often prioritize ease of deployment over strict security defaults in initial setups.
This vulnerability aligns closely with Common Weakness Enumeration (CWE) ID 295, which describes Improper Certificate Validation. It also maps to several tactics and techniques within the MITRE ATT&CK framework, particularly those related to Initial Access and Credential Access. Specifically, it facilitates reconnaissance and credential harvesting by allowing attackers to intercept login sequences or extract stored secrets from memory during transmission. The lack of strict certificate pinning or validation allows for sophisticated man-in-the-middle attacks where an adversary can position themselves between the client and the Fabric Composer server, decrypting traffic that was assumed to be secure due to the presence of TLS encryption. This undermines trust in the management plane of the network infrastructure, potentially leading to broader compromise if attackers use harvested credentials to escalate privileges or move laterally within the data center fabric.
To mitigate this risk, organizations must ensure that HPE Networking Fabric Composer is updated to the latest version provided by Hewlett Packard Enterprise, which includes patches addressing these certificate validation logic errors. Administrators should also enforce strict TLS configurations across all managed devices and management interfaces, ensuring that only trusted Certificate Authorities are accepted for mutual authentication where applicable. Implementing network segmentation to isolate the management plane from general user traffic can further reduce the attack surface by limiting exposure to potential remote exploitation attempts. Additionally, regular security audits focusing on certificate lifecycle management and validation logic will help identify similar misconfigurations before they can be exploited. Monitoring logs for anomalous connection patterns or failed authentication attempts may also provide early warning indicators of attempted exploitation activities targeting this specific weakness in the HPE ecosystem.