PYSEC-2026-558 Unstructured has Path Traversal via Malicious MSG Attachment that Allows Arbitrary File Write

A Path Traversal vulnerability in the partitionmsg function allows an attacker to write or overwrite arbitrary files on the filesystem when processing malicious MSG files with attachments. Impact An attacker can craft a malicious .msg file with attachment filenames containing path traversal...

CVE-2025-64712

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 partitionmsg function allows an attacker to write or overwrite arbitra...

Unstructured 安全漏洞

Unstructured is an open-source preprocessing tool for unstructured data developed by Unstructured. Versions of Unstructured prior to 0.18.18 contained a security vulnerability due to a path traversal vulnerability in the partitionmsg function. This vulnerability could allow arbitrary files to be...

Directory Traversal

Overview unstructured is an A library that prepares raw documents for downstream ML tasks. Affected versions of this package are vulnerable to Directory Traversal via the partitionmsg function’s handling of attachment filenames in email MSG files. An attacker can exploit this vulnerability by...