CVEvulnerability
CVE-2026-70480
4.1 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-08-04
- Last modified
- 2026-09-18
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
- Weaknesses
- CWE-918
Description
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.
Affected configurations
• openwebui open webui (>= 0.6.34 < 0.11.0)
Related
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://github.com/open-webui/open-webui/commit/5278eb906ebecefc6538a19bc86df09d997e43e6 Patch
- https://github.com/open-webui/open-webui/pull/26806 Patch, Vendor Advisory
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0 Release Notes
- https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649 Exploit, Patch, Vendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-rffm-9q57-q649 Exploit, Patch, Vendor Advisory