Python
CVE-2026-0766
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Open WebUI load_tool_module_by_id Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Open WebUI. Authentication is required to exploit this vulnerability.
The specific flaw exists within the load_tool_module_by_id function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28257.
AnalysisAI
Remote code execution in Open WebUI through the load_tool_module_by_id function allows authenticated attackers to execute arbitrary Python code due to insufficient input validation on user-supplied strings. An attacker with valid credentials can leverage this vulnerability to achieve code execution with service account privileges. No patch is currently available, making this a critical risk for deployed Open WebUI instances.
Technical ContextAI
Classified as CWE-94 (Code Injection). Affects the load_tool_module_by_id component of Open Webui. Open WebUI load_tool_module_by_id Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Open WebUI. Authentication is required to exploit this vulnerability.
The specific flaw exists within the load_tool_module_by_id function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
Leaving vuln.today