Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| golang.org/x/crypto / golang.org/x/crypto/ssh | affected 0 before 0.52.0 |
CWE
No CWE identifiers supplied.
References
- https://go.dev/issue/79566
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI
- https://go.dev/cl/781662
- https://pkg.go.dev/vuln/GO-2026-5019
ADP enrichment
No English description supplied.
No references supplied.