CVE-2026-44551: falha crítica em open-webui
Open WebUI: LDAP Empty Password Authentication Bypass
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43Vexday Risk Score
Corrija em breve. Ela tem exploit funcional público.
ssvc Attendcvss 9.1epss 1.5%
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP authentication endpoint does not validate that the submitted password is non-empty before performing a Simple Bind against the LDAP server. The LdapForm Pydantic model accepts password: str with no minimum length constraint, so an empty string passes validation. The subsequent Connection.bind() call succeeds on vulnerable LDAP servers, and the application issues a full session token for the target user. This vulnerability is fixed in 0.9.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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