CVE-2026-73707 Authenticated Privilege Escalation via Broken Access Control in HPE Networking Fabric Composer API

High 8.5 Published 1 Sep 2026 Updated 2 Sep 2026

Authenticated low-privilege users can escalate privileges to modify system configurations due to broken access control in the API.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-73707?

CVE-2026-73707 is a high-severity missing authorization vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Privilege escalation vulnerabilities exist in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege operator user to complete state-changing actions that should not be allowed by their current level of authorization on the platform, including changes to the configuration of systems managed by the affected product.

Weakness: CWE-863

Which versions are affected by CVE-2026-73707?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73707?

No fix has been published for CVE-2026-73707 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-73707 being exploited?

There is no known exploitation of CVE-2026-73707 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-q7x4-r85c-jc4v.