Vulnerability · Published Sep 1, 2026 · Assigned by hpe
CVE-2026-73742Improper Client Address Validation allows Request Attribution Spoofing in Fabric Composer API Endpoint
Medium 4.3
In plain English
A medium-severity authentication bypass by spoofing in Fabric Composer from Hewlett Packard Enterprise (HPE). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 82.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability in an API endpoint of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to spoof the source address attributed to their requests. Successful exploitation could allow an attacker to cause inaccurate attribution information to be recorded on the affected system.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hewlett Packard Enterprise (HPE) | Fabric Composer | 7.0.0 – through 7.3.3 |
Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N