Unverified Password Change Affecting org.openidentityplatform.openam:openam-auth-oauth2 package, versions [,16.1.1)
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- published29 Jun 2026
- disclosed26 Jun 2026
- creditwodzen
Introduced: 26 Jun 2026
CVE-2026-46623 (opens in a new tab)How to fix?
Upgrade org.openidentityplatform.openam:openam-auth-oauth2 to version 16.1.1 or higher.
Overview
Affected versions of this package are vulnerable to Unverified Password Change in the OAuth2 authentication module when the password is silently rewritten to the username upon OAuth2 re-login. An attacker can gain unauthorized access to user accounts by authenticating with both the username and password set to the username, thereby obtaining a session with the victim's privileges. This is only exploitable if the OAuth2 authentication module is enabled with account creation allowed (the default setting), and the username meets the minimum password length requirement.