SPM Failed to verified fingerprint for SSH url since Tahoe 26.3

Developer Tools & Services Xcode
Cabash OP
Created Feb ’26
Replies 16
Boosts 18
Views 2.1k
Participants 21

Hi there,

I recently updated to the latest version of macOS Tahoe 26.3. Since then, Xcode is not able to resolve my Swift Package dependencies anymore. We use SSH for all our Github hosted packages. When package resolution is running, we randomly have Failed to verify SSH fingerprint on some remote package.

Nothing has changed and it worked perfectly with Tahoe 26.2. The SSH have been reconfigured and known hosts have been verified.

Is something changed between those 2 versions or is it a bug ?

Replies  16
Boosts  18
Views  2.1k
Participants  21
bj_homer OP
4h

Pasting it into /etc/ssh/ssh_known_hosts worked for me too. (Had to restart Xcode first.)

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SPM Failed to verified fingerprint for SSH url since Tahoe 26.3
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