The get_cookies function in soup-cookie-jar.c in libsoup 2.63.2 allows attackers to have unspecified impact via an empty hostname.
https://www.debian.org/security/2018/dsa-4241
https://usn.ubuntu.com/3701-1/
https://lists.debian.org/debian-lts-announce/2018/07/msg00007.html
https://gitlab.gnome.org/GNOME/libsoup/issues/3
https://gitlab.gnome.org/GNOME/libsoup/commit/db2b0d5809d5f8226d47312b40992cadbcde439f
https://gitlab.gnome.org/GNOME/gnome-sdk-images/commit/4215b8a21b3b3055e947312a8920df94f93ba047
https://access.redhat.com/errata/RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2018:3140
https://access.redhat.com/errata/RHBA-2019:0327
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00003.html