CVE-2026-94583: Race Condition
A race condition vulnerability exists in the request processing logic of the REST management interface on Brocade Fabric OS versions before 10.0.1. When handling concurrent incoming network management FCIP requests, a timing window exists between when a request populates the address variable and when the service constructs and returns the response context. As a result, the first request adopts the modified context, causing the service to return sensitive management details or configuration data belonging to the second context back to the original requester.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Brocade Fabric OSto a version that resolves this vulnerability.Fixed in 10.0.1
Event History
Frequently Asked Questions
Which systems are exposed to this issue?
Brocade Fabric OS versions before 10.0.1 are affected when the REST management interface processes concurrent incoming network management FCIP requests.
What does an attacker need to exploit the race condition?
The attacker needs low-privileged access and must send concurrent network management FCIP requests that hit the timing window during request processing. No user interaction is required.
What information could be disclosed?
The service may return sensitive management details or configuration data from a second request context to the original requester.
How can this be remediated?
Upgrade Brocade Fabric OS to version 10.0.1 or later.