Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file in the host context via a symlink attack on g_file_trash.

suse_linux SUSE-SU-2026:2712-1: SUSE SLED15 / SLES15 : Security update for xdg-desktop-portal (Moderate) (SUSE-SU-2026:2712-1)

The remote Ubuntu 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8287-1 advisory.

    It was discovered that XDG Desktop Portal incorrectly handled trashing files. A local attacker could     possibly use this issue to delete arbitrary files on the host file system via a symlink attack.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1669 advisory.

    Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file     in the host context via a symlink attack on g_file_trash. (CVE-2026-40354)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of xdg-desktop-portal installed on the remote host is prior to 1.0.2-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3298 advisory.

    Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file     in the host context via a symlink attack on g_file_trash. (CVE-2026-40354)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Flatpak xdg-desktop-portal before 1.20.4 and 1.21.x before 1.21.1 allows any Flatpak app to trash any file     in the host context via a symlink attack on g_file_trash. (CVE-2026-40354)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
316486	Ubuntu 24.04 LTS / 25.10 : XDG Desktop Portal vulnerability (USN-8287-1)	Nessus	Ubuntu Local Security Checks	medium
315632	Amazon Linux 2023 : xdg-desktop-portal, xdg-desktop-portal-devel (ALAS2023-2026-1669)	Nessus	Amazon Linux Local Security Checks	medium
314565	Amazon Linux 2 : xdg-desktop-portal, --advisory ALAS2-2026-3298 (ALAS-2026-3298)	Nessus	Amazon Linux Local Security Checks	medium
306028	Linux Distros Unpatched Vulnerability : CVE-2026-40354	Nessus	Misc.	medium

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