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.
Published: 2026-05-14
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 14 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Yubico
Yubico webauthn-server-core
Vendors & Products Yubico
Yubico webauthn-server-core

Thu, 14 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 14 May 2026 03:45:00 +0000

Type Values Removed Values Added
Title Impersonation Vulnerability in Yubico WebAuthn Server Core 2.8.0–2.8.1

Thu, 14 May 2026 03:30:00 +0000

Type Values Removed Values Added
References

Thu, 14 May 2026 02:15:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-253
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Yubico Webauthn-server-core
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-14T13:52:51.531Z

Reserved: 2026-05-13T00:00:00.000Z

Link: CVE-2026-46419

cve-icon Vulnrichment

Updated: 2026-05-14T13:52:48.342Z

cve-icon NVD

Status : Deferred

Published: 2026-05-14T02:17:21.917

Modified: 2026-05-14T18:31:45.970

Link: CVE-2026-46419

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T14:33:02Z

Weaknesses