CVE-2026-46419

State: Published
Severity: 7.5 High
Published: May 14, 2026
Updated: May 14, 2026
Reserved: May 13, 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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	mitre

Weaknesses

CWE-253 Incorrect Check of Function Return Value

Affected Products

Product	Versions
webauthn-server-coreYubico	2.8.0 to before 2.8.2Affected

References

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

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