Vulnerability Details CVE-2026-70479
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, with WEB_LOADER_ENGINE=playwright, the Playwright web loader validates only the top-level page request and lets sub-resource requests pass unvalidated. A page supplied by an authenticated user can use JavaScript to reach blocked internal addresses, and returned DOM can include data read from those addresses in web-search or RAG output. This issue is fixed in 0.11.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.2%
CVSS Severity
CVSS v3 Score 7.7
References
- https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877
- https://github.com/open-webui/open-webui/pull/27526
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0
- https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95
- https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95
Products affected by CVE-2026-70479
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cpe:2.3:a:openwebui:open_webui:0.10.0
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cpe:2.3:a:openwebui:open_webui:0.10.1
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cpe:2.3:a:openwebui:open_webui:0.10.2
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cpe:2.3:a:openwebui:open_webui:0.9.6