Vulnerability-Lookup

CVE-2025-64712 (GCVE-0-2025-64712)

Vulnerability from cvelistv5 – Published: 2026-02-04 17:34 – Updated: 2026-02-04 19:24

Title

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

Summary

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.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 - External Control of File Name or Path

Assigner

GitHub_M

References

URL

Tags

	https://github.com/Unstructured-IO/unstructured/s…	x_refsource_CONFIRM
	https://github.com/Unstructured-IO/unstructured/c…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Unstructured-IO	unstructured	Affected: < 0.18.18

Show details on NVD website

JSON

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GHSA-GM8Q-M8MV-JJ5M

Vulnerability from github – Published: 2026-02-03 17:43 – Updated: 2026-02-04 19:53

Summary

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

Details

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.

## Impact An attacker can craft a malicious .msg file with attachment filenames containing path traversal sequences (e.g., ../../../etc/cron.d/malicious). When processed with process_attachments=True, the library writes the attachment to an attacker-controlled path, potentially leading to:

Arbitrary file overwrite
Remote code execution (via overwriting configuration files, cron jobs, or Python packages)
Data corruption
Denial of service

## Affected Functionality The vulnerability affects the MSG file partitioning functionality when process_attachments=True is enabled.

## Vulnerability Details The library does not sanitize attachment filenames in MSG files before using them in file write operations, allowing directory traversal sequences to escape the intended output directory.

## Workarounds Until patched, users can: - Set process_attachments=False when processing untrusted MSG files - Avoid processing MSG files from untrusted sources - Implement additional filename validation before processing

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.18.17"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "unstructured"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.18.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-64712"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-73"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-03T17:43:56Z",
    "nvd_published_at": "2026-02-04T18:16:07Z",
    "severity": "CRITICAL"
  },
  "details": "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.\n\n  ## Impact\n  An attacker can craft a malicious .msg file with attachment filenames containing path traversal sequences (e.g.,\n  `../../../etc/cron.d/malicious`). When processed with `process_attachments=True`, the library writes the attachment to an\n  attacker-controlled path, potentially leading to:\n\n  - Arbitrary file overwrite\n  - Remote code execution (via overwriting configuration files, cron jobs, or Python packages)\n  - Data corruption\n  - Denial of service\n\n  ## Affected Functionality\n  The vulnerability affects the MSG file partitioning functionality when `process_attachments=True` is enabled.\n\n  ## Vulnerability Details\n  The library does not sanitize attachment filenames in MSG files before using them in file write operations, allowing directory\n  traversal sequences to escape the intended output directory.\n\n  ## Workarounds\n  Until patched, users can:\n  - Set `process_attachments=False` when processing untrusted MSG files\n  - Avoid processing MSG files from untrusted sources\n  - Implement additional filename validation before processing",
  "id": "GHSA-gm8q-m8mv-jj5m",
  "modified": "2026-02-04T19:53:04Z",
  "published": "2026-02-03T17:43:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-gm8q-m8mv-jj5m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64712"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Unstructured-IO/unstructured/commit/b01d35b2373fd087d2e15162b9c021663c97155d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Unstructured-IO/unstructured"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unstructured has Path Traversal via Malicious MSG Attachment that Allows Arbitrary File Write"
}

FKIE_CVE-2025-64712

Vulnerability from fkie_nvd - Published: 2026-02-04 18:16 - Updated: 2026-02-05 14:57

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/Unstructured-IO/unstructured/commit/b01d35b2373fd087d2e15162b9c021663c97155d
	security-advisories@github.com	https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-gm8q-m8mv-jj5m

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2025-64712",
  "lastModified": "2026-02-05T14:57:20.563",
  "metrics": {
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        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
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  "published": "2026-02-04T18:16:07.370",
  "references": [
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      "source": "security-advisories@github.com",
      "url": "https://github.com/Unstructured-IO/unstructured/commit/b01d35b2373fd087d2e15162b9c021663c97155d"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-gm8q-m8mv-jj5m"
    }
  ],
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  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-22"
        },
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          "value": "CWE-73"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-64712 (GCVE-0-2025-64712)

GHSA-GM8Q-M8MV-JJ5M

FKIE_CVE-2025-64712

Tags

Sightings

Nomenclature