Maintainers for hdf5 are Gilles Filippini <pini@debian.org>.
You may want to refer to the following individual bug pages: hdf5-helpers, hdf5-tools, libhdf5-103, libhdf5-103-1, libhdf5-103-1t64, libhdf5-310, libhdf5-cpp-103, libhdf5-cpp-103-1, libhdf5-cpp-103-1t64, libhdf5-cpp-310, libhdf5-dev, libhdf5-doc, libhdf5-fortran-102, libhdf5-fortran-102t64, libhdf5-fortran-310, libhdf5-hl-100, libhdf5-hl-100t64, libhdf5-hl-310, libhdf5-hl-cpp-100, libhdf5-hl-cpp-100t64, libhdf5-hl-cpp-310, libhdf5-hl-fortran-100, libhdf5-hl-fortran-100t64, libhdf5-hl-fortran-310, libhdf5-java, libhdf5-jni, libhdf5-mpi-dev, libhdf5-mpich-103, libhdf5-mpich-103-1, libhdf5-mpich-103-1t64, libhdf5-mpich-310, libhdf5-mpich-cpp-103-1, libhdf5-mpich-cpp-103-1t64, libhdf5-mpich-cpp-310, libhdf5-mpich-dev, libhdf5-mpich-fortran-102, libhdf5-mpich-fortran-102t64, libhdf5-mpich-fortran-310, libhdf5-mpich-hl-100, libhdf5-mpich-hl-100t64, libhdf5-mpich-hl-310, libhdf5-mpich-hl-cpp-100, libhdf5-mpich-hl-cpp-100t64, libhdf5-mpich-hl-cpp-310, libhdf5-mpich-hl-fortran-100, libhdf5-mpich-hl-fortran-100t64, libhdf5-mpich-hl-fortran-310, libhdf5-openmpi-103, libhdf5-openmpi-103-1, libhdf5-openmpi-103-1t64, libhdf5-openmpi-310, libhdf5-openmpi-cpp-103-1, libhdf5-openmpi-cpp-103-1t64, libhdf5-openmpi-cpp-310, libhdf5-openmpi-dev, libhdf5-openmpi-fortran-102, libhdf5-openmpi-fortran-102t64, libhdf5-openmpi-fortran-310, libhdf5-openmpi-hl-100, libhdf5-openmpi-hl-100t64, libhdf5-openmpi-hl-310, libhdf5-openmpi-hl-cpp-100, libhdf5-openmpi-hl-cpp-100t64, libhdf5-openmpi-hl-cpp-310, libhdf5-openmpi-hl-fortran-100, libhdf5-openmpi-hl-fortran-100t64, libhdf5-openmpi-hl-fortran-310.
You might like to refer to the hdf5 package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.