{"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"],"vendor":"Unstructured-IO","product":"unstructured","affected":["unstructured < 0.24.1"],"patched":["unstructured 0.24.1"],"published":"2026-10-13","updated":"2026-10-16","sourceUpdated":"2026-10-16T16:00:33.533","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"},{"url":"https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104250"},{"url":"https://github.com/advisories/GHSA-v5mq-3xhg-98m9"},{"url":"https://github.com/Unstructured-IO/unstructured"}],"tags":["nvd","cve.org","exploit-available","ghsa","pip","osv"],"epss":0.00234,"epssPercentile":0.14285,"aliases":["GHSA-v5mq-3xhg-98m9"],"ecosystem":"pip","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-14T15:32:11.460266Z"},"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.\n\n## Package advisory (CVE-2026-104250)\n\nAffected packages:\n\n- `unstructured <= 0.24.0`\n\nPatched in:\n\n- `unstructured 0.24.1`\n\nSource: https://github.com/advisories/GHSA-v5mq-3xhg-98m9","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":221314,"id":"CVE-2026-104250","ts":1792031111403,"field":"exploit_available","old":"false","new":"true"}]}