CVE-2026-70480
- Source
- https://cve.org/CVERecord?id=CVE-2026-70480
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-70480.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-70480
- Aliases
- Published
- 2026-08-04T19:43:15.645Z
- Modified
- 2026-08-12T03:51:16.634818016Z
- Severity
-
- 4.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N CVSS Calculator
- Summary
- Open WebUI: Client-side SSRF via unrestricted external resource loading in Vega/Vega-Lite chart rendering
- Details
-
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.
- Database specific
{ "cwe_ids": [ "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70480.json", "cna_assigner": "GitHub_M" }- References
-
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70480.json
- https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649
- https://nvd.nist.gov/vuln/detail/CVE-2026-70480
- https://github.com/open-webui/open-webui/commit/5278eb906ebecefc6538a19bc86df09d997e43e6
- https://github.com/open-webui/open-webui/pull/26806