CVE-2026-46416
Severity CVSS v4.0:
Pending analysis
Type:
CWE-284
Improper Access Control
Publication date:
27/05/2026
Last modified:
27/05/2026
Description
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO creates one shared UFOWebSocketHandler instance and reuses it for multiple authenticated WebSocket connections. The handler stores per-connection protocol objects in mutable instance fields. Each new WebSocket connection overwrites those fields. Later, message handlers send responses through the shared fields instead of through protocol objects bound to the originating connection. As a result, the most recently connected authenticated client can receive protocol responses that belong to another authenticated client.
Impact
Base Score 3.x
6.30
Severity 3.x
MEDIUM