CVE-2026-0766 — HIGH (8.8) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

8.8

HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Openwebui	Open Webui	0.6.32

Related Weaknesses (CWE)

CWE-94

References

https://www.zerodayinitiative.com/advisories/ZDI-26-032/Third Party Advisory

FAQ

What is CVE-2026-0766?

CVE-2026-0766 is a vulnerability with a CVSS score of 8.8 (HIGH). 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. A...

How severe is CVE-2026-0766?

CVE-2026-0766 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-0766?

Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.