CVE-2026-73739 Authenticated Sensitive Information Disclosure in HPE Networking Fabric Composer API
An attacker with administrative privileges can access sensitive information in cleartext via the HPE Networking Fabric Composer API.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73739?
CVE-2026-73739 is a medium-severity vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability exists in the API of HPE Networking Fabric Composer that allows for an attacker with administrative privileges to access sensitive information in a cleartext format. A successful exploit allows an attacker to retrieve sensitive information that was expected to remain protected within the affected system.
Weakness: CWE-200
Which versions are affected by CVE-2026-73739?
It affects 1 product.
Products include Arubanetworks Fabric Composer.
How do I fix CVE-2026-73739?
No fix has been published for CVE-2026-73739 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73739 being exploited?
There is no known exploitation of CVE-2026-73739 in the wild and no public exploit code.
Other vulnerabilities in Arubanetworks Fabric Composer
- CVE-2026-76657 Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access
- CVE-2026-76658 Unauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH Daemon
- CVE-2026-19766 Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Networking Fabric Composer
- CVE-2026-73700 Cross-site scripting in Fabric Composer
- CVE-2026-73701 Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
Sources
Also known as GHSA-26gj-wq6c-f45c.