CVE-2026-63455 Authentication bypass via spoofed HTTP headers Orchestrator REST API

Critical 9.8 Published Updated

Unauthenticated attackers can bypass authentication via spoofed headers to view and modify sensitive information in HPE SD-WAN Orchestrator.

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-2026-63455?

CVE-2026-63455 is a critical authentication bypass vulnerability in Hewlett Packard Enterprise (HPE) EdgeConnect SD-WAN Orchestrator, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple vulnerabilities in the REST API interface of HPE Networking SD-WAN Orchestrator could allow an unauthenticated remote attacker to bypass web authentication mechanisms and access system functions. Successful exploitation could allow an attacker to view and modify potentially sensitive information on the target system.

Weakness: CWE-306

Which versions are affected by CVE-2026-63455?

How do I fix CVE-2026-63455?

No fix has been published for CVE-2026-63455 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-2026-63455 being exploited?

There is no known exploitation of CVE-2026-63455 in the wild and no public exploit code.

Sources

Also known as GHSA-883w-8c8j-j55v.

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