{"id":"CVE-2026-70479","title":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform","summary":"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 r…","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","cwe":["CWE-918"],"vendor":"openwebui","product":"open_webui","affected":["open_webui >= 0.9.6, < 0.11.0"],"patched":["open_webui 0.11.0"],"published":"2026-08-04","updated":"2026-09-18","sourceUpdated":"2026-09-18T14:45:45.107","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70479","references":[{"url":"https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/pull/27526","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/releases/tag/v0.11.0","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/advisories/GHSA-w2rx-84hp-gg95"}],"tags":["nvd","ghsa","pip"],"epss":0.00268,"epssPercentile":0.19165,"aliases":["GHSA-w2rx-84hp-gg95"],"ecosystem":"pip","ingestedAt":"2026-08-04T19:41:28.801Z","slug":"CVE-2026-70479","body":"## Overview\n\nOpen 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.\n\n## Affected\n\n- `open_webui >= 0.9.6, < 0.11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `open_webui 0.11.0`\n\n## Package advisory (CVE-2026-70479)\n\nAffected packages:\n\n- `open-webui >= 0.9.6, < 0.11.0`\n\nPatched in:\n\n- `open-webui 0.11.0`\n\nSource: https://github.com/advisories/GHSA-w2rx-84hp-gg95","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}