Skip to content

Known CVE

Open WebUI 'LDAP Empty Password' - Authentication Bypass

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.

CVE-2026-44551

Critical2026CVSS 9.1CWE-287

cve2026 · open-webui · ldap · auth-bypass

Verified scans run this check after you prove you own the site.

All known CVEsView the checks catalogNational Vulnerability Database

Scan a website