{"id":"CVE-2026-70479","published":"2026-08-04T20:16:54.760","lastModified":"2026-08-05T16:17:02.287","description":"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.","cvssScore":7.7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877","tags":[]},{"url":"https://github.com/open-webui/open-webui/pull/27526","tags":[]},{"url":"https://github.com/open-webui/open-webui/releases/tag/v0.11.0","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","tags":[]}],"exploitRefs":[{"url":"https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877","tags":[]},{"url":"https://github.com/open-webui/open-webui/pull/27526","tags":[]},{"url":"https://github.com/open-webui/open-webui/releases/tag/v0.11.0","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","tags":[]},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","tags":[]}],"hasPoc":true,"ai":{"summary":"The flaw allows authenticated users to execute JavaScript that can access blocked internal addresses, potentially leading to data leakage in web-search or RAG output.","exploitability":"Exploitation requires an authenticated user and knowledge of the internal network structure; moderate difficulty due to validation on top-level page requests.","blast_radius":"If exploited, it could lead to significant data exposure within the organization’s internal systems.","remediation":"Upgrade to version 0.11.0 or later to apply the fix for this vulnerability.","tags":["web","auth-bypass","data-leakage","javascript"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-08-11T06:53:12.640Z"}}