CVE-2026-105791

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Source
https://cve.org/CVERecord?id=CVE-2026-105791
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105791.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-105791
Aliases
  • GHSA-cmq9-vqjf-4q2q
Published
2026-10-06T14:09:23Z
Modified
2026-10-09T10:30:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Microsoft UFO: Arbitrary code execution in `run_shell` via `explorer.exe` argument injection
Details

Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the run_shell tool in the CommandLineExecutor component of ufo/client/mcp/local_servers/cli_mcp_server.py validates only the first token of the bash_command parameter and permits explorer.exe. On Windows, explorer.exe delegates its following path argument to ShellExecute, so an attacker-influenced agent call can launch an arbitrary executable or script as the desktop user even though the subprocess uses shell=False. Exploitation depends on a user running an affected agent workflow and on inducing the tool call, but successful execution can access or modify that user's files, tokens, and sessions. This issue is fixed in version 3.0.9.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-184",
        "CWE-88"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105791.json"
}
References

Affected packages

Git / github.com/microsoft/ufo

Affected ranges

Type
GIT
Repo
https://github.com/microsoft/ufo
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3e1262fc091eb319253b7a1338b63f62cc6c82b1
Fixed
be75a7ded2ad98d97819e15ff1b39d4202ac3ac5
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.0.9"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.0.6
3.0.7
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105791.json"