Maintainers for gpg are Debian GnuPG Maintainers <[email protected]>.
You may want to refer to the following packages that are part of the same source: dirmngr, gnupg, gnupg-agent, gnupg-l10n, gnupg-utils, gnupg2, gpg-agent, gpg-wks-client, gpg-wks-server, gpgconf, gpgsm, gpgv, gpgv-static, gpgv-win32, gpgv2, scdaemon, tpm2daemon.
You might like to refer to the gpg package page, to the Package Tracking System, or to the source package src:gnupg2's bug page.
If you find a bug not listed here, please report it.