Microsoft UFO Path Traversal Vulnerability

Publication date: 2026-05-27

Last updated on: 2026-05-30

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-27

Last Modified

2026-05-30

Generated

2026-07-07

AI Q&A

2026-05-28

EPSS Evaluated

2026-07-06

NVD

CVE-2026-46402

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	ufo	3.0.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-73	The product allows user input to control or influence paths or file names that are used in filesystem operations.
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Microsoft UFO open-source framework for intelligent automation. In version 3.0.1-4-ge2626659, the software uses a user-controlled value called task_name directly when creating session log paths. Because an authenticated client can supply path traversal sequences in task_name, it can cause the system to create log directories and files outside the intended logs/ directory.

Impact Analysis

The vulnerability allows an authenticated user to perform path traversal attacks by manipulating the task_name value. This can lead to the creation of log files and directories outside the designated logs/ directory, potentially overwriting or creating files in unauthorized locations. The impact includes high integrity and availability risks, as indicated by the CVSS score, meaning attackers could alter or disrupt log files and related system operations.

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