CVE-2025-64712

Unknown Unknown - Not Provided

Path Traversal in unstructured Library Allows Arbitrary File Overwrite

Publication date: 2026-02-04

Last updated on: 2026-02-27

Assigner: GitHub, Inc.

Description

The unstructured library provides open-source components for ingesting and pre-processing images and text documents, such as PDFs, HTML, Word docs, and many more. Prior to version 0.18.18, a path traversal vulnerability in the partition_msg function allows an attacker to write or overwrite arbitrary files on the filesystem when processing malicious MSG files with attachments. This issue has been patched in version 0.18.18.

CVSS Scores

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Meta Information

Published

2026-02-04

Last Modified

2026-02-27

Generated

2026-07-06

AI Q&A

2026-02-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-64712

EUVD

EUVD-2025-206785

Affected Vendors & Products

Vendor	Product	Version / Range
unstructured	unstructured	to 0.18.18 (exc)

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 unstructured library, which is used for ingesting and pre-processing various document types like PDFs, HTML, Word documents, and MSG files. Specifically, before version 0.18.18, there was a path traversal vulnerability in the partition_msg function. This flaw allows an attacker to write or overwrite arbitrary files on the filesystem by processing specially crafted malicious MSG files with attachments.

Impact Analysis

The vulnerability can have severe impacts because it allows an attacker to write or overwrite any file on the system without any privileges or user interaction. This can lead to complete system compromise, including the ability to execute arbitrary code, disrupt system availability, and compromise confidentiality and integrity of data.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should upgrade the unstructured library to version 0.18.18 or later, where the path traversal issue in the partition_msg function has been patched.

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