ZDI-26-033: (0Day) Open WebUI Cleartext Transmission of Credentials Information Disclosure Vulnerability
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Open WebUI. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of credentials provided to the endpoint. The issue results from transmitting sensitive information in plaintext. An attacker can leverage this vulnerability to disclose transmitted credentials, leading to further compromise.
Other sources
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Open WebUI. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 5.3. The following CVEs are assigned: CVE-2026-0767.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of vulnerability ZDI-26-033?
The severity of vulnerability ZDI-26-033 is critical due to its potential to disclose sensitive information without requiring authentication.
How do I fix vulnerability ZDI-26-033?
To fix vulnerability ZDI-26-033, implement encryption for credentials in transit and ensure secure configurations are applied to Open WebUI.
Who is affected by vulnerability ZDI-26-033?
Affected users include those utilizing Open WebUI installations that have not secured data transmission methods.
Can vulnerability ZDI-26-033 be exploited remotely?
Yes, vulnerability ZDI-26-033 can be exploited by network-adjacent attackers, making it possible to access sensitive data without authentication.
What types of sensitive information can be disclosed due to ZDI-26-033?
Vulnerability ZDI-26-033 can lead to the disclosure of sensitive login credentials or other confidential data transmitted in cleartext.