{"cve":"CVE-2021-3632","nvd":{"published":"2022-08-26T16:15:09.110","modified":"2026-06-17T04:05:28.567","status":"Modified","description":"A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.5},"cwes":["CWE-287"],"references":["https://access.redhat.com/security/cve/CVE-2021-3632","https://bugzilla.redhat.com/show_bug.cgi?id=1978196","https://github.com/keycloak/keycloak/commit/65480cb5a11630909c086f79d396004499fbd1e4","https://github.com/keycloak/keycloak/pull/8203","https://issues.redhat.com/browse/KEYCLOAK-18500"],"products":["redhat:keycloak","redhat:single_sign-on"],"source":"nvd","synced_at":"2026-10-19T21:35:14.992143698+00:00"},"epss":{"cve":"CVE-2021-3632","score":0.01157,"percentile":0.67083,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qpq9-jpv4-6gwr","url":"https://osv.dev/vulnerability/GHSA-qpq9-jpv4-6gwr","summary":"Keycloak allows anyone to register new security device or key for any user by using WebAuthn password-less login flow","modified":"2023-11-08T04:06:13.095745Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-core","purl":"pkg:maven/org.keycloak/keycloak-core","ranges":["<15.1.0"],"fixed":["15.1.0"]}]}],"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."]}