Vulnerability Description
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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Related Weaknesses (CWE)
References
- https://github.com/Yubico/java-webauthn-server/releases/tag/2.8.2
- https://www.yubico.com/support/security-advisories/ysa-2026-02/
FAQ
What is CVE-2026-46419?
CVE-2026-46419 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2026-46419?
CVE-2026-46419 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46419?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.