Description
The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a -no-touch-required- extension in Permissions.Extensions from PublicKeyCallback.
CVSS 9.1EPSS 0.42%Risque 0.94
Voir la source- Publication
- 2026-05-22 04:16:22
- Versions concernées
- unknown
- Type
- Logiciel critique
- Vecteur
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N