{ "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" } } ] } }