CVE-2026-73706 Authentication Bypass in the API of HPE Networking Fabric Composer allows Data Exposure and Unauthorized Changes

High 8.6 Published 1 Sep 2026 Updated 2 Sep 2026

Unauthenticated attackers can access system information and modify settings in HPE Networking Fabric Composer, potentially disrupting operations.

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

What is CVE-2026-73706?

CVE-2026-73706 is a high-severity authentication bypass vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the API of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to obtain limited system information and to change the state of certain settings of a vulnerable system. Successful exploitation could allow an attacker to gain insight into internal services and workflows and to make unauthorized changes that may disrupt the normal operation of the affected service.

Weakness: CWE-306

Which versions are affected by CVE-2026-73706?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73706?

No fix has been published for CVE-2026-73706 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-73706 being exploited?

There is no known exploitation of CVE-2026-73706 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-g5jc-5x3g-7wmf.