Improper Authentication Affecting open-webui package, versions [,0.9.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-OPENWEBUI-16599159
- published9 May 2026
- disclosed8 May 2026
- creditClassic298
Introduced: 8 May 2026
CVE-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.