libflatpak.so is vulnerable to arbitrary file read. The use of custom formated .desktop files allows an attacker escape sandbox restrictions to gain access to files on the host system.
github.com/flatpak/flatpak/commit/8279c5818425b6812523e3805bbe242fb6a5d961
github.com/flatpak/flatpak/commit/a7401e638bf0c03102039e216ab1081922f140ae
github.com/flatpak/flatpak/commit/eb7946bb6248923d8c90fe9b84425fef97ae580d
github.com/flatpak/flatpak/pull/4156
github.com/flatpak/flatpak/releases/tag/1.10.2
github.com/flatpak/flatpak/security/advisories/GHSA-xgh4-387p-hqpp
lists.fedoraproject.org/archives/list/[email protected]/message/2MXXLXC2DPJ45HSMTI5MZYHMYEGQN6AA/
lists.fedoraproject.org/archives/list/[email protected]/message/WXNVFOIB6ZP4DGOVKAM25T6OIEP3YLGV/
www.debian.org/security/2021/dsa-4868