CVE-2026-40947

Severity CVSS v4.0:

Pending analysis

Type:

CWE-426 Untrusted Search Path

Publication date:

16/04/2026

Last modified:

17/04/2026

Description

Yubico libfido2 before 1.17.0, python-fido2 before 2.2.0, and yubikey-manager before 5.9.1 have an unintended DLL search path.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 2.90 LOW
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x

2.90

Severity 3.x

LOW

References to Advisories, Solutions, and Tools

https://www.yubico.com/support/security-advisories/ysa-2026-01/