Path Traversal in Unstructured
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 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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Unstructured
- Unstructured-Io Unstructured — versions < 0.18.18
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-64712?
- CVE-2025-64712 is a critical-severity vulnerability in Unstructured, classified under Path Traversal. CVSS score: 9.8/10. Published 2026-02-04.
- How severe is CVE-2025-64712?
- Critical severity. CVSS v3 base score is 9.8 out of 10.