CVE-2026-44551 | BDVDB-2026-333548 Detail

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. This vulnerability is fixed in 0.9.0.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-05-15Record published in the CVE List.
2. Version 22026-05-19Most recent update recorded in the CVE List.