{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-70480","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-04T15:24:41.339Z","datePublished":"2026-08-04T19:43:15.645Z","dateUpdated":"2026-08-05T14:18:27.453Z"},"containers":{"cna":{"title":"Open WebUI: Client-side SSRF via unrestricted external resource loading in Vega/Vega-Lite chart rendering","problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649"},{"name":"https://github.com/open-webui/open-webui/pull/26806","tags":["x_refsource_MISC"],"url":"https://github.com/open-webui/open-webui/pull/26806"},{"name":"https://github.com/open-webui/open-webui/commit/5278eb906ebecefc6538a19bc86df09d997e43e6","tags":["x_refsource_MISC"],"url":"https://github.com/open-webui/open-webui/commit/5278eb906ebecefc6538a19bc86df09d997e43e6"},{"name":"https://github.com/open-webui/open-webui/releases/tag/v0.11.0","tags":["x_refsource_MISC"],"url":"https://github.com/open-webui/open-webui/releases/tag/v0.11.0"}],"affected":[{"vendor":"open-webui","product":"open-webui","versions":[{"version":">= 0.6.34, < 0.11.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-04T19:43:15.645Z"},"descriptions":[{"lang":"en","value":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.34 until 0.11.0, Open WebUI renders vega and vega-lite fenced code blocks in chat content by building a Vega view in the viewer browser without a restricted resource loader. Any user who can place such a block where another user will see it can make that user browser issue attacker-chosen outbound GET requests and read responses from same-origin or CORS-permissive targets into the rendered page. This issue is fixed in 0.11.0."}],"source":{"advisory":"GHSA-rffm-9q57-q649","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T14:18:17.750527Z","id":"CVE-2026-70480","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-05T14:18:27.453Z"}}]}}