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CVE-2025-64712VulnerabilityPublished

CVE-2025-64712: unstructured · Path Traversal

Affects unstructuredSource CVE Database V5

0

Not known to be exploited · CVSS 9.8 Critical : upgrade to 0.18.18 as a priority.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.18.18
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade unstructured to 0.18.18.

Affected software

ProductAffectedFixed in
Unstructured-IOunstructuredAffected
  • <0.18.18
Fixed in
  • 0.18.18
PyPIunstructuredpkg:pypi/unstructuredOther threatsAffected
  • <0.18.18
Fixed in
  • 0.18.18

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Immediate upgrade to unstructured library version 0.18.18 or later to apply the official patch addressing the path traversal vulnerability. 2. Implement strict input validation and sanitization for all document ingestion workflows, especially for MSG files and their attachments, to detect and block suspicious pathnames or malformed files. 3. Employ sandboxing or containerization for document processing components to limit filesystem access and contain potential exploitation impact. 4. Monitor file system changes and logs for unusual write activities originating from document processing services. 5. Conduct thorough code audits and dependency reviews to identify and remediate other potential path traversal or directory traversal issues. 6. Restrict permissions of the service account running the unstructured library to the minimum necessary, preventing unauthorized file system modifications outside designated directories. 7. Establish incident response procedures for rapid containment and remediation if exploitation is suspected. 8. Educate development and security teams about secure handling of untrusted document inputs and the importance of timely patching.

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.

References

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