cvedb.io
CVE-2026-3429
MEDIUM · CVSS 4.2
EPSS exploitation probability: 0%
Published 2026-03-11T17:16:59.270 · Last modified 2026-06-17T10:43:34.860

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.