Description

A flaw was identified in the Account REST API of Keycloak that allows a user authenticated at a lower security level to perform sensitive actions intended only for higher-assurance sessions. Specifically, an attacker who has already obtained a victim’s password can delete the victim’s registered MFA/OTP credential without first proving possession of that factor. The attacker can then register their own MFA device, effectively taking full control of the account. This weakness undermines the intended protection provided by multi-factor authentication.

INFO

Published Date :

2026-03-11T16:17:24.321Z

Last Modified :

2026-04-02T16:39:41.284Z

Source :

redhat
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3429 vulnerability.

Vendors Products
Keycloak
  • Keycloak
Redhat
  • Build Keycloak
  • Jboss Enterprise Application Platform
  • Jbosseapxp
  • Red Hat Single Sign On

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact