CVE-2026-71428
CriticalCVSS 9.3Summary
In the unstructured library (from 0.4.7 to 0.24.0), the url argument in partition, partition_html, and partition_md is fetched without host validation, allowing an attacker to access loopback addresses, internal HTTP services, or cloud metadata endpoints.
Risk Assessment
An attacker can disclose internal service responses or trigger side effects on GET endpoints, potentially leading to data leakage or unauthorized actions.
Recommendation
Update the unstructured library to version 0.24.0 or later.
Original NVD description (English source)
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.