CVE-2026-59223

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.10.0

Description Improper matching in the WEB FETCH FILTER LIST allows for blocklist bypasses. The system compares configured host entries against URL strings and non-label-boundary suffixes, which enables path-based bypasses (for example, including !internal.example.com within a URL path) and sibling-domain matches that deviate from the intended hostname policy.

Recommendations Update to version 0.10.0.