CVE-2026-3429
Published: Mar 11, 2026
Modified: Apr 2, 2026
CVSS v3.1
4.2
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4.11-1 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-14 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-14 - < * |
Red Hat | Red Hat build of Keycloak 26.4.11 | All versions |
Red Hat | Red Hat Build of Keycloak | All versions |
Red Hat | Red Hat Build of Keycloak | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | All versions |
Red Hat | Red Hat Single Sign-On 7 | All versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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