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CVE-2025-64712

CRITICAL CVSS 3.1: 9.8 EPSS 0.12%
Updated Feb 05, 2026
Parameter Value
CVSS 9.8 (CRITICAL)
Fixed In 0.18.18
Type CWE-22 (Path Traversal), CWE-73 (External Control of File Name or Path)
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1