Make it so only I can access fstab despite other users having sudo

I have a server that multiple users access. On that server a CIFS drive is mounted through fstab.

Mounting the CIFS drive requires sending the password in plaintext. This is not something I can change.
Multiple users require sudo access, unfortunately this also cannot change.

Of course, root owns /etc/fstab, which has my password in it.

Is there any way to keep other users with sudo access from reading /etc/fstab?