cvedb.io
CVE-2026-55440
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-07-16T16:19:13.787 · Last modified 2026-07-16T17:46:04.350

Summary

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.7, the COMMAND_RESULTS handler in ufo/server/ws/handler.py called get_or_create_session in ufo/server/services/session_manager.py without owner_client_id, allowing an authenticated client to create an unowned attacker-chosen session_id such as constellation_task_id = f"{task_name}@{task_id}" and deny the legitimate owner or exhaust memory with phantom sessions. This issue is fixed in version 3.0.7.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.