Several vulnerabilities were discovered in Flatpak, an application deployment framework for desktop apps. CVE-2021-43860 Ryan Gonzalez discovered that Flatpak didn"t properly validate that the permissions displayed to the user for an app at install time match the actual permissions granted to the app at runtime. Malicious apps could therefore grant themselves permissions without the consent of the user. CVE-2022-21682 Flatpak didn"t always prevent a malicious flatpak-builder user from writing to the local filesystem.