Improper Authentication Affecting open-webui package, versions [,0.9.0)
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- published9 May 2026
- disclosed8 May 2026
- creditClassic298
Introduced: 8 May 2026
NewCVE-2026-44551 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.9.0 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Improper Authentication in the LdapForm process. An attacker can gain unauthorized access to any LDAP user account, including administrative accounts, by submitting a valid username with an empty password to the LDAP authentication endpoint. This results in the issuance of a full session token for the target user. This is only exploitable if LDAP authentication is enabled and the underlying LDAP server accepts unauthenticated simple binds with empty passwords, and the attacker knows a valid LDAP username.