unstructured: Stored XSS via unescaped HTML generation

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0023, the 14th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:08 UTC First seen by agentprime
2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-v5mq-3xhg-98m9
• OSV: GHSA-v5mq-3xhg-98m9
• github.com/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9
• nvd.nist.gov/vuln/detail/CVE-2026-104250
• github.com/Unstructured-IO/unstructured/pull/4394
• github.com/Unstructured-IO/unstructured/commit/cda16b3f2170019be9c6ea5635946fb3eaa2d66f
• github.com/Unstructured-IO/unstructured
• github.com/Unstructured-IO/unstructured/releases/tag/0.24.1

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.