Org.keycloak/keycloak-services: webauthn attestation statement verification bypass (Keycloak keycloak)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.23 % · percentile 14 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-347 — Improper Verification of Cryptographic Signature
References
- 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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | redhat |
| CVSS 3.1 | LOW 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | LOW 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-7g5x-9c4v-4w5r — Keycloak REST Services has a WebAuthn Attestation Statement Verification Bypass
European references
- ENISA EUVD · EUVD-2025-208135
- GCVE · GCVE-0-2025-12150
Affected configurations (NVD CPE)
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*< 26.4.4cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*cpe:2.3:a:redhat:keycloak:24.0.2:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Keycloak · keycloak | affected 0 < 26.4.4 |
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2.11-1 < * |
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2-12 < * |
| Red Hat · Red Hat build of Keycloak 26.2 | unaffected 26.2-12 < * |
| Red Hat · Red Hat build of Keycloak 26.2.11 | |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4.4-1 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-3 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-3 < * |
| Red Hat · Red Hat build of Keycloak 26.4.4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |