{"schemaVersion":3,"id":"CVE-2026-44551","aliases":["GHSA-2r4p-jpmg-48f4","PYSEC-2026-435"],"status":"published","duplicateOf":null,"title":null,"description":"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. 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