CVE-2026-40947

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.

CVSS 3.1

2.9CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-26)

CWE

CWE-426

Published

2026-04-16

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

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

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