CVE-2026-73733 Authentication Bypasses in API allow Continued Authenticated Access in HPE Networking Fabric Composer

Medium 5.4 Published 1 Sep 2026 Updated 1 Sep 2026

An authenticated low-privilege user can bypass API authentication controls to retain access after revocation in HPE Networking Fabric Composer.

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-2026-73733?

CVE-2026-73733 is a medium-severity authentication bypass 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

Authentication bypasses in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to circumvent existing authentication controls. Successful exploitation could allow an attacker to retain limited access to the affected system after that access should have been revoked.

Weakness: CWE-287

Which versions are affected by CVE-2026-73733?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73733?

No fix has been published for CVE-2026-73733 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-2026-73733 being exploited?

There is no known exploitation of CVE-2026-73733 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-qggv-rqq9-3q3c.