CVEvulnerability

CVE-2026-44551

9.1 CRITICAL Published 2026-05-15 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-05-15
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-287

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.

Affected configurations

• openwebui open webui (< 0.9.0)

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References