Maintainers for libevent are Nicolas Mora <babelouest@debian.org>.
You may want to refer to the following individual bug pages: libevent-2.1-6, libevent-2.1-7, libevent-2.1-7t64, libevent-core-2.1-6, libevent-core-2.1-7, libevent-core-2.1-7t64, libevent-dev, libevent-extra-2.1-6, libevent-extra-2.1-7, libevent-extra-2.1-7t64, libevent-openssl-2.1-6, libevent-openssl-2.1-7, libevent-openssl-2.1-7t64, libevent-pthreads-2.1-6, libevent-pthreads-2.1-7, libevent-pthreads-2.1-7t64.
You might like to refer to the libevent package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.