๐Ÿ” CVE Alert

CVE-2026-71428

CRITICAL 9.3

unstructured: Server-Side Request Forgery in the URL-based partitioning

CVSS Score
9.3
EPSS Score
0.0%
EPSS Percentile
0th

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. From 0.4.7 until 0.24.0, the url argument of partition, partition_html, and partition_md is fetched without host validation in unstructured/partition/auto.py, unstructured/partition/html/partition.py, and unstructured/partition/md.py. An attacker who controls that URL can make a server-side ingestion service request loopback addresses, internal HTTP services, or cloud metadata endpoints through direct targets, redirects, or DNS rebinding. The response body is returned as Element text, allowing internal response disclosure, and side-effecting GET endpoints may also be triggered. This issue is fixed in version 0.24.0.

CWE CWE-601 CWE-918
Vendor unstructured-io
Product unstructured
Published Aug 20, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

Affected Versions

Unstructured-IO / unstructured
>= 0.4.7, < 0.24.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-4mvj-m6j5-pmf7 github.com: https://github.com/Unstructured-IO/unstructured/pull/4388 github.com: https://github.com/Unstructured-IO/unstructured/commit/445c95735c4045057f51f399bc04c657751923bd github.com: https://github.com/Unstructured-IO/unstructured/releases/tag/0.24.0