CVE-2026-59223

mediumCVSS 4.3covered by 1 sourcefirst seen 2026-07-09

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, WEB_FETCH_FILTER_LIST matching compared configured host entries against URL strings and non-label-boundary suffixes, allowing path-based blocklist bypasses such as !internal.example.com in a URL path and sibling-domain matches that did not reflect the intended hostname policy. This issue is fixed in version 0.10.0.

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Exploitation outlook

Low exploitation risk0.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-59223: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to…nvd · 2026-07-09

External references

NVD record for CVE-2026-59223

CVE.org record

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