{"cve":"CVE-2025-12150","nvd":{"published":"2026-02-27T09:16:15.227","modified":"2026-08-10T03:16:39.830","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","score":3.1},"cwes":["CWE-347"],"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"],"products":["redhat:build_of_keycloak","redhat:keycloak"],"source":"nvd","synced_at":"2026-10-19T22:24:17.937441719+00:00"},"epss":{"cve":"CVE-2025-12150","score":0.0023,"percentile":0.13872,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-7g5x-9c4v-4w5r","url":"https://osv.dev/vulnerability/GHSA-7g5x-9c4v-4w5r","summary":"Keycloak REST Services has a WebAuthn Attestation Statement Verification Bypass","modified":"2026-08-26T01:11:34.770530525Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","ranges":["<26.4.4"],"fixed":["26.4.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}