{"id":"CVE-2026-104250","title":"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","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 0.24.1, partition_html(html_parser_version=\"v2\") and the VLM part…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79","CWE-116"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T17:17:15.900","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104250","references":[{"url":"https://github.com/Unstructured-IO/unstructured/commit/cda16b3f2170019be9c6ea5635946fb3eaa2d66f","label":"security-advisories@github.com"},{"url":"https://github.com/Unstructured-IO/unstructured/pull/4394","label":"security-advisories@github.com"},{"url":"https://github.com/Unstructured-IO/unstructured/releases/tag/0.24.1","label":"security-advisories@github.com"},{"url":"https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9","label":"security-advisories@github.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T17:38:53.177Z","slug":"CVE-2026-104250","body":"## Overview\n\nThe 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 0.24.1, partition_html(html_parser_version=\"v2\") and the VLM partitioner can preserve untrusted document tags, attributes, text, and link targets in metadata.text_as_html, while elements_to_html() emits the result as an HTML document. The to_html() path in unstructured/documents/ontology.py does not escape output or reject unsafe URL schemes, allowing event-handler attributes, attribute breakout markup, and javascript: links to survive parsing. When the generated HTML or text_as_html is rendered in a browser, attacker-controlled script can execute in the viewer's origin, including in document-ingestion workflows where a privileged reviewer opens submitted content. This issue is fixed in version 0.24.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}