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CVE-2026-46402— Microsoft UFO uses untrusted task_name in log paths, allowing authenticated path traversal and log file creation outside the logs directory

Quick assessment

Affected
microsoft UFO
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UFO³是Microsoft开源的一个跨设备协作的多智能体任务编排工具。 UFO³ 3.0.1-4-ge2626659版本存在安全漏洞，该漏洞源于使用用户控制的task_name值构建会话日志路径，可能导致路径遍历攻击。

CVSS 8.1 · High EPSS 1.01% · P62

Possible ATT&CK Techniques 2 AI

T1106 · Native API T1059.004 · Unix Shell

Affected Version Matrix 1

VendorProduct Version RangeStatus
microsoft UFO 3.0.1-4-ge2626659 affected
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I. Basic Information for CVE-2026-46402

Vulnerability Information
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Vulnerability Title
Microsoft UFO uses untrusted task_name in log paths, allowing authenticated path traversal and log file creation outside the logs directory
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft UFO open-source framework for intelligent automation across devices and platforms. In 3.0.1-4-ge2626659, Microsoft UFO uses the user-controlled task_name value directly when constructing session log paths. An authenticated client can supply path traversal sequences in task_name and cause UFO to create log directories and log files outside the intended logs/ directory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
UFO³ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UFO³是Microsoft开源的一个跨设备协作的多智能体任务编排工具。 UFO³ 3.0.1-4-ge2626659版本存在安全漏洞，该漏洞源于使用用户控制的task_name值构建会话日志路径，可能导致路径遍历攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
microsoft UFO 3.0.1-4-ge2626659 -

II. Public POCs for CVE-2026-46402

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8415 chars
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Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-46402

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Vendor Advisories for CVE-2026-46402 (1)

Same Patch Batch · microsoft · 2026-05-27 · 6 CVEs total

CVE-2026-46414 8.8 HIGH Microsoft UFO WebSocket role spoofing allows authenticated peer task hijacking
CVE-2026-45322 7.8 HIGH OS Command Injection in Microsoft UFO Shell Action Replay via Stored Session JSON
CVE-2026-46416 6.3 MEDIUM Microsoft UFO shared WebSocket handler state causes cross-client response hijacking
CVE-2026-46538 5.9 MEDIUM Microsoft UFO accepts cross-device TASK_END messages by session_id only, allowing peer tas
CVE-2026-46544 5.3 MEDIUM Microsoft UFO reuses client-supplied WebSocket session IDs and replays stale task results

IV. Related Vulnerabilities

Same product: UFO
Same vendor: microsoft
Same weakness: CWE-22

V. Comments for CVE-2026-46402

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