The 1.32.0 release of vaultwarden fixed several information leaks. See Release 1.32.0 · dani-garcia/vaultwarden · GitHub for more details.
You can follow the update progress here for unstable vaultwarden: 1.31.0 -> 1.32.0 by r-ryantm · Pull Request #334048 · NixOS/nixpkgs · GitHub and here for stable [24.05] vaultwarden: 1.30.5 -> 1.31.0 -> 1.32.0 by SuperSandro2000 · Pull Request #334099 · NixOS/nixpkgs · GitHub
The exact progress can be viewed with Nixpkgs PR progress tracker (not linking directly to reduce load for preview generation)