CVE-2025-64496: Open WebUI code injection via SSE events

# CVE-2025-64496: Open WebUI code injection via SSE events

https://gcdradar.vercel.app/incidents/cve-2025-64496-open-webui-code-injection-via-sse-events · AIR-2025-0368 · closed 2025-11-07

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-11-07
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2025-64496
- CVSS: 7.3

## Summary

Open WebUI contains a code injection vulnerability in its Direct Connections feature allowing malicious model servers to execute JavaScript. This can lead to token theft and account takeover.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-11-08: CVE-2025-64496: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2025-64496)
- 2025-11-07: CVE-2025-64496: Open WebUI Affected by an External Model Server (Direct Connections) Code Injection via SSE Events (https://github.com/advisories/GHSA-cm35-v4vp-5xvx)

## Sources

- 2025-11-07 GitHub Advisory Database: CVE-2025-64496: Open WebUI Affected by an External Model Server (Direct Connections) Code Injection via SSE Events https://github.com/advisories/GHSA-cm35-v4vp-5xvx
- 2025-11-08 NVD: CVE-2025-64496: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2025-64496

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.