CVE-2026-73704

8.8

Hewlett Packard Enterprise (HPE) · Fabric Composer

A command sanitization bypass in the HPE Fabric Composer API allows authenticated operators to escalate privileges to administrative levels.

Executive summary

An authenticated privilege escalation vulnerability in HPE Fabric Composer allows low-privileged operators to gain administrative control over the system.

Vulnerability

This vulnerability involves a command sanitization bypass within the API. An authenticated operator with low privileges can manipulate API calls to escalate their permissions to those of an administrative user.

Business impact

With a CVSS score of 8.8, this flaw presents a high risk of unauthorized administrative access. An attacker who has already gained low-level access can fully compromise the system, potentially altering network configurations or exfiltrating sensitive management data, which is critical in a fabric management environment.

Remediation

Immediate Action: Apply the latest security updates available via the HPE support portal.

Proactive Monitoring: Monitor API traffic for unusual command patterns or unauthorized privilege escalation attempts by existing operator accounts.

Compensating Controls: Restrict API access to trusted management subnets and enforce the principle of least privilege for all operator accounts until a patch is applied.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

The ability to escalate to administrative privileges makes this a high-priority issue. Organizations should audit operator accounts and apply the vendor-provided updates immediately to prevent full system compromise.

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Sources

Originally found and disclosed by This vulnerability was discovered by internal security research at HPE Networking., per the CVE Program record.