Low severity3.1NVD Advisory· Published Feb 27, 2026· Updated Aug 10, 2026
CVE-2025-12150
CVE-2025-12150
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.keycloak:keycloak-servicesMaven | < 26.4.4 | 26.4.4 |
Affected products
7- Red Hat/Red Hat build of Keycloak 26.2.11v5cpe:/a:redhat:build_keycloak:26.2::el9
cpe:/a:redhat:build_keycloak:26.4::el9+ 2 more
- cpe:/a:redhat:build_keycloak:26.4::el9
- cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*range: <26.4.4
- cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
Patches
Vulnerability mechanics
References
11- access.redhat.com/errata/RHSA-2025:21370nvdVendor AdvisoryWEB
- access.redhat.com/errata/RHSA-2025:21371nvdVendor AdvisoryWEB
- access.redhat.com/errata/RHSA-2025:22088nvdVendor AdvisoryWEB
- access.redhat.com/errata/RHSA-2025:22089nvdVendor AdvisoryWEB
- access.redhat.com/security/cve/CVE-2025-12150nvdVendor AdvisoryWEB
- github.com/advisories/GHSA-7g5x-9c4v-4w5rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-12150ghsaADVISORY
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingWEB
- github.com/keycloak/keycloak/commit/4136a677e7e24f6685ed25567e191e1003200339ghsaWEB
- github.com/keycloak/keycloak/issues/35110ghsaWEB
- github.com/keycloak/keycloak/issues/43723nvdIssue TrackingWEB
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