CVE-2026-105789

Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the execute_command tool in ufo/client/mcp/http_servers/linux_mcp_server.py treats sort and uniq as read-only commands while the free-form command parameter can select their file-output forms. An authenticated caller can use sort -o or the optional second uniq operand to create or overwrite files writable by the UFO server process without shell metacharacters, because the allowed binary opens the destination itself and the argument policy does not reject the operation. This can corrupt configuration or other writable data and disrupt the service, but the demonstrated primitive does not directly disclose files or establish arbitrary code execution. This issue is fixed in version 3.0.9.

• CWE-88
• CWE-184

• https://github.com/microsoft/UFO/commit/4f793622794f5d47810d54bed431c61f6a781dd6
• https://github.com/microsoft/UFO/pull/349
• https://github.com/microsoft/UFO/releases/tag/v3.0.9
• https://github.com/microsoft/UFO/security/advisories/GHSA-85w2-wggf-rw49

Published

Oct 6, 2026

Last Modified

Oct 6, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-105782Scrapy is a high-level web crawling and scraping framework f…7.5
• CVE-2026-105783Joplin is an open source note-taking and to-do application t…8
• CVE-2026-105784Joplin is an open source note-taking and to-do application t…4.6
• CVE-2026-105785Joplin is an open source note-taking and to-do application t…4.8
• CVE-2026-105786Joplin is an open source note-taking and to-do application t…8.5
• CVE-2026-105788Microsoft UFO is an open-source framework for intelligent au…8.8
• CVE-2026-10579A flaw was found in Picketlink Federation SAML; the unsolcit…9.8
• CVE-2026-105790Microsoft UFO is an open-source framework for intelligent au…6.4
• CVE-2026-105791Microsoft UFO is an open-source framework for intelligent au…7.5
• CVE-2026-105792Microsoft UFO is an open-source framework for intelligent au…6.5
• CVE-2026-105793Microsoft UFO is an open-source framework for intelligent au…9.1
• CVE-2026-105794MsQuic is a cross-platform C implementation of the IETF QUIC…9.1