Can't install on RHEL 8: bad GPG signature

Stock RHEL 8, up-to-date, but there’s a bad signature on ‘tailscale-stable’. Any ideas? Thanks.

$ curl -fsSL | sh
Installing Tailscale for rhel 8, using method dnf
+ sudo dnf config-manager --add-repo
Updating Subscription Management repositories.
Adding repo from:
+ sudo dnf install tailscale
Updating Subscription Management repositories.
Tailscale stable                                                                                                   860  B/s | 800  B     00:00    
Tailscale stable                                                                                                   6.9 kB/s | 3.1 kB     00:00    
Importing GPG key 0x957F5868:
 Userid     : "Tailscale Inc. (Package repository signing key) <>"
 Fingerprint: 2596 A99E AAB3 3821 893C 0A79 458C A832 957F 5868
 From       :
Is this ok [y/N]: Tailscale stable                                           [            ===                                      ] ---  B/s |   0Tailscale stable                                                                                                   880  B/s | 800  B     00:00    
Error: Failed to download metadata for repo 'tailscale-stable': repomd.xml GPG signature verification error: Bad GPG signature

I ran in to the same problem. I filed a bug report, it will be updated here:

In the meantime, if you have already run the script, and it has failed. You can manually run:

sudo yum install tailscale

It will prompt you to accept the repository key, then install it.

You will then have to start with:
sudo systemctl start tailscaled
tailscale up

And proceed as normal.