low3.1
CVE-2025-12150
Keycloak REST Services has a WebAuthn Attestation Statement Verification Bypass
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.keycloak:keycloak-services | < 26.4.4 | 26.4.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redhat | Build Of Keycloak | before 26.4.4 All versions |
| Redhat | Keycloak | Version 24.0.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://access.redhat.com/errata/RHSA-2025:21370
- https://access.redhat.com/errata/RHSA-2025:21371
- https://access.redhat.com/errata/RHSA-2025:22088
- https://access.redhat.com/errata/RHSA-2025:22089
- https://access.redhat.com/security/cve/CVE-2025-12150
- https://bugzilla.redhat.com/show_bug.cgi?id=2406192
- https://github.com/keycloak/keycloak/issues/43723
- https://github.com/advisories/GHSA-7g5x-9c4v-4w5r
- https://nvd.nist.gov/vuln/detail/CVE-2025-12150
- https://github.com/keycloak/keycloak/issues/35110
- https://github.com/keycloak/keycloak/commit/4136a677e7e24f6685ed25567e191e1003200339