CVE-2026-46419

{"id": "CVE-2026-46419", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46419", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-14T13:52:44.564338Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "Yubico", "product": "webauthn-server-core", "versions": [{"status": "affected", "version": "2.8.0", "lessThan": "2.8.2", "versionType": "semver"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-14T02:17:21.917", "references": [{"url": "https://github.com/Yubico/java-webauthn-server/releases/tag/2.8.2", "source": "cve@mitre.org"}, {"url": "https://www.yubico.com/support/security-advisories/ysa-2026-02/", "source": "cve@mitre.org"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-253"}]}], "descriptions": [{"lang": "en", "value": "Yubico webauthn-server-core (aka java-webauthn-server) 2.8.0 before 2.8.2 incorrectly checks a function's return value in the second factor flow, leading to impersonation."}], "lastModified": "2026-06-17T10:53:39.490", "sourceIdentifier": "cve@mitre.org"}