{"cve":"CVE-2023-45669","nvd":{"published":"2023-10-16T19:15:11.167","modified":"2026-06-17T06:29:19.627","status":"Modified","description":"WebAuthn4J Spring Security provides Web Authentication specification support for Spring applications. Affected versions are subject to improper signature counter value handling. A flaw was found in webauthn4j-spring-security-core. When an authneticator returns an incremented signature counter value during authentication, webauthn4j-spring-security-core does not properly persist the value, which means cloned authenticator detection does not work. An attacker who cloned valid authenticator in some way can use the cloned authenticator without being detected. This issue has been addressed in version `0.9.1.RELEASE`. Users are advised to upgrade. There are no known workarounds for this vulnerability.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-287"],"references":["https://github.com/webauthn4j/webauthn4j-spring-security/commit/129700d74d83f9b9a82bf88ebc63707e3cb0a725","https://github.com/webauthn4j/webauthn4j-spring-security/security/advisories/GHSA-v9hx-v6vf-g36j","https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-sign-counter","https://github.com/webauthn4j/webauthn4j-spring-security/commit/129700d74d83f9b9a82bf88ebc63707e3cb0a725","https://github.com/webauthn4j/webauthn4j-spring-security/security/advisories/GHSA-v9hx-v6vf-g36j"],"products":["webauthn4j:spring_security"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-45669","score":0.0064,"percentile":0.5066,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v9hx-v6vf-g36j","url":"https://osv.dev/vulnerability/GHSA-v9hx-v6vf-g36j","summary":"WebAuthn4J Spring Security Improper signature counter value handling","modified":"2026-09-10T03:49:24.753335748Z","packages":[{"ecosystem":"Maven","name":"com.webauthn4j:webauthn4j-spring-security-core","purl":"pkg:maven/com.webauthn4j/webauthn4j-spring-security-core","ranges":["<0.9.1.RELEASE"],"fixed":["0.9.1.RELEASE"]}]}],"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."]}