CVE-2025-64496
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event (SSE) execute events. This leads to authentication token theft, complete account takeover, and when chained with the Functions API, enables remote code execution on the backend server. The attack requires the victim to enable Direct Connections (disabled by default) and add the attacker's malicious model URL, achievable through social engineering of the admin and subsequent users. This issue is fixed in version 0.6.35.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- EPSS probability
- 7.77%
- CWE
- CWE-95, CWE-829, CWE-830, CWE-501
- Published
- 2025-11-08
- Last modified
- 2026-03-12
Affected products
- open-webui open-webui
Weakness type
Related vulnerabilities
- CVE-2026-80351 — Apache Camel K: Camel K Tenant repositories reach Maven execution inside operator pod
- CVE-2026-78550 — Improper Input Handling in Okta Access Gateway Management Console Exception Handler
- CVE-2026-48273 — ColdFusion | Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') (CWE-95)
- CVE-2026-76190 — ColdFusion | Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') (CWE-95)
- CVE-2026-79678 — Freeipa: idm: freeipa: idp-add eval() reachable before authorization check allows environment disclosure and denial of service
- CVE-2026-85165 — n8n before 2.36.2 Expression Sandbox Bypass via SpreadElement
- CVE-2026-65643 — Eval injection in cPanel 11.138.0.0 and earlier allows remote authenticated users to execute...
- CVE-2026-19295 — Langflow is affected by multiple remote code execution vulnerabilities due to insufficient code-execution policy enforcement