CVE-2025-64712

Unstructured has Path Traversal via Malicious MSG Attachment that Allows Arbitrary File Write

Published Feb 4, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-gm8q-m8mv-jj5m Unstructured has Path Traversal via Malicious MSG Attachment that Allows Arbitrary File Write
History
Type Values Removed Values Added
First Time appeared Unstructured
Unstructured unstructured
CPEs cpe:2.3:a:unstructured:unstructured:*:*:*:*:*:python:*:*
Vendors & Products Unstructured
Unstructured unstructured
Type Values Removed Values Added
First Time appeared Unstructured-io
Unstructured-io unstructured
Vendors & Products Unstructured-io
Unstructured-io unstructured
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Unstructured has Path Traversal via Malicious MSG Attachment that Allows Arbitrary File Write
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Feb 4, 2026, 7:24 PM
Reserved
Nov 10, 2025, 2:07 PM
Status
Analyzed
Published
Feb 4, 2026, 6:16 PM
Modified
Jun 17, 2026, 9:55 AM