CVE-2026-19117

Under specific conditions, an attacker can register an attacker-controlled FIDO2 credential against a target account and then authenticate as that user. This issue affects on-premises deployments only.

Scoring

Severity
CRITICAL
CVSS base score
9.8
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS probability
0.28%
CWE
CWE-290
Published
2026-09-02
Last modified
2026-09-02

Affected products

Weakness type

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