Vulnerability in Microsoft Ufo
CVE-2026-105792
Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the /api/task_result/{task_name} endpoint calls SessionManager.get_result_by_task() in ufo/server/services/session_manager.py, which acquires a non-reentrant lock and then calls SessionManager.get_result() to acquire the same lock again when the task name maps to a session. An authenticated caller who knows or creates a mapped task name can therefore block the request indefinitely, and in the default single-process server configuration the blocked event-loop thread prevents other HTTP, WebSocket, and dependent background interactions. Unknown task names do not reach the nested call and are not affected. This issue is fixed in version 3.0.9.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Microsoft Ufo — versions < 3.0.9
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-105792?
- CVE-2026-105792 is a medium-severity vulnerability in Microsoft Ufo, classified under CWE-833. CVSS score: 6.5/10. Published 2026-10-06.
- How severe is CVE-2026-105792?
- Medium severity. CVSS v3 base score is 6.5 out of 10.