# CVE-2026-46419

## Summary

- **CVE ID:** CVE-2026-46419
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-253
- **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.

## Affected Products

- Yubico — webauthn-server-core (2.8.0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.31%
- **EPSS Percentile:** 23.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._