{"id":"CVE-2026-59223","state":"PUBLISHED","title":"Open WebUI: `WEB_FETCH_FILTER_LIST` host allow/block filter bypassable via URL path and non-label-boundary matching","description":"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.","publishedAt":"2026-07-09T17:00:08.976Z","updatedAt":"2026-07-09T17:53:06.003Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["open-webui open-webui"],"affected":[{"vendor":"open-webui","product":"open-webui","versions":[{"version":"< 0.10.0","status":"affected"}]}],"references":["https://github.com/open-webui/open-webui/security/advisories/GHSA-qg3f-8x3j-ggf2","https://github.com/open-webui/open-webui/pull/25949","https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656","https://github.com/open-webui/open-webui/releases/tag/v0.10.0"],"weaknesses":["CWE-693"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59223.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59223","state":"PUBLISHED","datePublished":"2026-07-09T17:00:08.976Z","dateUpdated":"2026-07-09T17:53:06.003Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-02T21:05:02.925Z"},"containers":{"cna":{"title":"Open WebUI: `WEB_FETCH_FILTER_LIST` host allow/block filter bypassable via URL path and non-label-boundary matching","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"open-webui","product":"open-webui","versions":[{"version":"< 0.10.0","status":"affected"}]}],"references":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-qg3f-8x3j-ggf2","name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-qg3f-8x3j-ggf2","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/open-webui/open-webui/pull/25949","name":"https://github.com/open-webui/open-webui/pull/25949","tags":["x_refsource_MISC"]},{"url":"https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656","name":"https://github.com/open-webui/open-webui/commit/087878ce848a4d828012068b5997dac480f43656","tags":["x_refsource_MISC"]},{"url":"https://github.com/open-webui/open-webui/releases/tag/v0.10.0","name":"https://github.com/open-webui/open-webui/releases/tag/v0.10.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-693","lang":"en","description":"CWE-693: Protection Mechanism Failure","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-09T17:00:08.976Z"},"source":{"advisory":"GHSA-qg3f-8x3j-ggf2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-09T17:52:51.423655Z","id":"CVE-2026-59223","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-09T17:53:06.003Z"}}]}}}