CVE-2025-12150
This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in Keycloak’s WebAuthn registration component. This vulnerability allows an attacker to bypass the configured attestation policy and register untrusted or forged authenticators via submission of an attestation object with fmt: "none", even when the realm is configured to require direct attestation. This can lead to weakened authentication integrity and unauthorized authenticator registration.
- CVSS 3.1
- 3.1 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- redhat/build of keycloak · redhat/keycloak
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2025:21370Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:21371Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:22088Vendor Advisory
- https://access.redhat.com/errata/RHSA-2025:22089Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2025-12150Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2406192Issue Tracking
- https://github.com/keycloak/keycloak/issues/43723Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.