Skip to content
fr Sign in
4.2 Medium

CVE-2026-3429 A flaw was identified in the Account REST API of Keycloak that allows a user authenticated at a lower security level…

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.

Affected products and versions

Product Affected versions Fixed in
Red Hat build of Keycloak 26.4 26.4 earliest → < 26.4-14 26.4-14
Red Hat build of Keycloak 26.4.11 Versions not published
Red Hat Build of Keycloak Versions not published
Red Hat JBoss Enterprise Application Platform 8 Versions not published
Red Hat JBoss Enterprise Application Platform Expansion Pack Versions not published
Red Hat Single Sign-On 7 Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Red Hat build of Keycloak 26.4

The 87 CVEs of Red Hat build of Keycloak 26.4 →
CVE-2026-19607 A flaw was found in the first-broker-login flow of the keycloak-services component 5.3 Medium CVE-2026-17526 Keycloak is an open-source identity and access management solution 7.2 High CVE-2026-79651 A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service… 7.5 High CVE-2026-74909 Keycloak provides a policy enforcer to protect applications by matching incoming web requests against defined security… 8.1 High
Track this CVE