Carriage return (% / ^M) added to every entry

[Tjorbenn]

All my unencrypted entries in /run/secrets/... have a carriage return symbol added to the end of them making my passwords fail (I use them to authenticate my email), because a "^M" is added to the end of them, when neomutt/aerc is trying to authenticate with IMAP servers.
I get the passwords via the passwordCommand cat /run/secrets/.... When I just try the command in the terminal, a "%" symbol is added to the end of the password.

Is this an issue with sops/sops-nix, or is this an issue with my passwordCommand?

[Tjorbenn]

I also tried different editors to make sure I'm not adding them while I input the password or when I paste them.

[Tjorbenn]

A fix is to run the output through dos2unix, even though nothing is ever input from Windows