Report: CVE-2026-46538 - Microsoft UFO accepts cross-device TASK_END messages by session_id only, allowin

Report: CVE-2026-46538 - Microsoft UFO accepts cross-device TASK_END messages by session_id only, allowin

CVE ID :CVE-2026-46538 Published : May 27, 2026, 11:16 p.m. | 14 minutes ago Description :Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO's constellation client tracks pending task responses by session_id only and does not verify that a TASK_END message came from the device that originally received the task. When the constellation sends a task to a target device, it records a pending Future under a session key. The pending task record stores the expected device ID, but the completion path ignores that binding. If another authenticated peer device sends a forged TASK_END with the same session_id, the constellation accepts the response and completes the victim device's pending Future with attacker-controlled result data. This is an authenticated cross-device task-result injection issue. Severity: 5.9 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
May 27, 2026
Affected Product: Microsoft UFO