# CVE-2026-73736: HPE Networking Fabric Composer path traversal in web interface

Source: https://junglewise.ai/threats/cve-2026-73736-hpe-networking-fabric-composer-path-traversal-in-web-interface  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-01. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-73736 · Severity: medium · CVSS 5.3 · Published 2026-09-01

HPE Networking Fabric Composer is a web-based management tool for enterprise network fabric infrastructure. An unauthenticated attacker can read arbitrary files on the system through the management interface, potentially exposing sensitive configuration data, credentials, or system information that could be used for further attacks.

Technologies: [Arubanetworks Fabric Composer](https://junglewise.ai/threats/technologies/fabric-composer), [Hpe Networking Fabric Composer](https://junglewise.ai/threats/technologies/networking-fabric-composer). Vendors: [Arubanetworks](https://junglewise.ai/threats/vendors/arubanetworks), [Hpe](https://junglewise.ai/threats/vendors/hpe).

## Quick answers

**Is CVE-2026-73736 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73736 being exploited in the wild.

**How severe is CVE-2026-73736?** Medium severity, with a CVSS score of 5.3, published 1 September 2026.

**Which products and versions are affected?** HPE Networking Fabric Composer.

**Is there a fix for CVE-2026-73736?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-73736 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-73736?** Check whether you run Arubanetworks Fabric Composer or Hpe Networking Fabric Composer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is a path traversal/directory traversal flaw in the web-based management interface of HPE Networking Fabric Composer. The vulnerability allows an unauthenticated remote attacker to read arbitrary files within the affected directory by manipulating file path parameters. No authentication is required to exploit this issue, making it remotely exploitable by any network-accessible user. Successful exploitation enables an attacker to access sensitive system files and configuration information. HPE has released patches to address this vulnerability.

## Affected products

- HPE Networking Fabric Composer

## Timeline

- 2026-09-01: disclosed

## References

- [https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US](https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US)

## Related threats

- [HPE Networking Fabric Composer API race condition](https://junglewise.ai/threats/cve-2026-95772-a-race-condition-vulnerability-exists-in-the-api-of-hpe)
- [HPE Networking Fabric Composer information disclosure in API](https://junglewise.ai/threats/cve-2026-95771-an-authenticated-information-disclosure-vulnerability-exists-in)
- [HPE Networking Fabric Composer information disclosure in OS](https://junglewise.ai/threats/cve-2026-95770-a-sensitive-information-disclosure-vulnerability-in-the)
- [HPE Networking Fabric Composer audit log spoofing](https://junglewise.ai/threats/cve-2026-95769-an-audit-log-spoofing-vulnerability-exists-in-the-api-of-hpe)
- [HPE Networking Fabric Composer API privilege escalation](https://junglewise.ai/threats/cve-2026-95768-a-privilege-escalation-vulnerability-exists-in-the-api-of-hpe)