Ghostwire

CVE-2026-46419: Yubico webauthn-server-core (aka java-webauthn-server) 2.8.0 before 2.8.2 incorrectly checks a function's return value...

HIGH CVSS 7.5

Published: May 14, 2026 | Last Modified: May 14, 2026

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.

Ghostwire Analysis — What This Means Practically

High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (1 articles)

References

github.com/Yubico/java-webauthn-server/releases/tag/2.8.2
www.yubico.com/support/security-advisories/ysa-2026-02/