ZDI-26-031: (0Day) Open WebUI PIP install_frontmatter_requirements 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 installfrontmatterrequirements function.The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Open WebUI. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-0765.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-26-031?
ZDI-26-031 is a critical vulnerability that allows remote code execution on affected installations of Open WebUI.
How do I fix ZDI-26-031?
To fix ZDI-26-031, update your Open WebUI installation to the latest version that addresses this vulnerability.
Who can exploit ZDI-26-031?
ZDI-26-031 can be exploited by authenticated remote attackers with access to affected installations of Open WebUI.
What type of vulnerability is ZDI-26-031?
ZDI-26-031 is categorized as a command injection vulnerability that leads to remote code execution.
What systems are affected by ZDI-26-031?
ZDI-26-031 affects all installations of Open WebUI that have not been patched against this vulnerability.