CVE-2026-105792
MEDIUM 6.5Microsoft 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.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.7%chance of exploitation in 30 days · 53rd percentile
Impact if exploited
6.5CVSS 3.1 · MEDIUM
- ConfidentialityNone
- IntegrityNone
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-833: : Deadlock
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References and research data (JSON)
All CVSS metrics
- MEDIUM 6.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - MEDIUM 6.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
Exploit-tagged references (not proof of a PoC)
- https://github.com/microsoft/UFO/security/advisories/GHSA-3hwr-qx8m-9xxx CVE record · GitHub_M · Updated 2026-10-06T14:10:52.316Z
CVE record · CISA-ADP · Updated 2026-10-06T17:41:54.294Z
NVD · CVE-2026-105792 · Updated 2026-10-06T18:16:46.957
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-93420 EUVD · EUVD-2026-93420
Technical & other
- https://github.com/microsoft/UFO/commit/0eeb792333ce76c856bc1c8b05fd65fc26bd3c50 CVE record · GitHub_M · Updated 2026-10-06T14:10:52.316Z
NVD · CVE-2026-105792 · Updated 2026-10-06T18:16:46.957 - https://github.com/microsoft/UFO/releases/tag/v3.0.9 CVE record · GitHub_M · Updated 2026-10-06T14:10:52.316Z
NVD · CVE-2026-105792 · Updated 2026-10-06T18:16:46.957