CVE-2026-71428 PUBLISHED

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

Assigner: GitHub_M
Reserved: 06.08.2026 Published: 20.08.2026 Updated: 20.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
CVSS Score: 9.3

Product Status

Vendor Unstructured-IO
Product unstructured
Versions
  • Version >= 0.4.7, < 0.24.0 is affected

References

Problem Types

  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') CWE
  • CWE-918: Server-Side Request Forgery (SSRF) CWE