ALAS2023-2026-3384

References: CVE-2026-55888  CVE-2026-55889 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileChooser.SaveFiles method to gain arbitrary file access to non-existing files on the host (limited to files the user has access to). The FileChooser.SaveFiles method takes optional filenames which get appended to the selected directory by backends. The backends are supposed to check that the file does not exist yet. The filenames are not validated by the frontend and also not by common backends. This issue has been patched in version 1.22.1. (CVE-2026-55888)

XDG Desktop Portal is a desktop integration portal. Prior to version 1.22.1, malicious sandboxed applications can use the FileTransfer.RetrieveFiles method to redirect drag-and-drop and copy-paste data targeted at other applications to itself. Some portals generate tokens which provide access to resources. The sharing of the token transfers access to the resource and is supposed to happen out of band. The tokens were generated with g_random_int or g_uuid_string_random, both of which use GLib's GRand based on the Mersenne Twister PRNG which created a stream of reproducible random numbers. By generating enough tokens, the state of the GRand can be recover and with it, the next tokens can be predictedinsufin. This issue has been patched in version 1.22.1. (CVE-2026-55889)

Issue Correction:
Run dnf update xdg-desktop-portal --releasever 2023.12.20261109 or dnf update --advisory ALAS2023-2026-3384 --releasever 2023.12.20261109 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:

aarch64:
    xdg-desktop-portal-debuginfo-1.18.4-108.amzn2023.aarch64
    xdg-desktop-portal-devel-1.18.4-108.amzn2023.aarch64
    xdg-desktop-portal-debugsource-1.18.4-108.amzn2023.aarch64
    xdg-desktop-portal-1.18.4-108.amzn2023.aarch64

src:
    xdg-desktop-portal-1.18.4-108.amzn2023.src

x86_64:
    xdg-desktop-portal-debugsource-1.18.4-108.amzn2023.x86_64
    xdg-desktop-portal-debuginfo-1.18.4-108.amzn2023.x86_64
    xdg-desktop-portal-1.18.4-108.amzn2023.x86_64
    xdg-desktop-portal-devel-1.18.4-108.amzn2023.x86_64