Vulnerability record · CVE-2026-46419 · published 14 May 2026

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

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.

7.5 CVSS 3.1 High EPSS 0.42% · top 66.6% CWE-253 · CWE-253 Deferred

7.5CVSS 3.1 base score

0.42%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

2References

17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-46419), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.