AIKIDO-2026-11029
golang.org/x/crypto is vulnerable to Invoking Bypass
91
Critical Risk
This Affects:
golang.org/x/cryptoTL;DR
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.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and if you use the golang.org/x/crypto/ssh functionalities.
Background info
golang.org/x/crypto is vulnerable to Invoking Bypass in versions 0.0.0 - 0.51.0.
How to fix this
Upgrade the golang.org/x/crypto library to the patch version.
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