Ubuntu alert USN-8287-1 (xdg-desktop-portal)

From:
             
 
noreply+usn-bot@canonical.com
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-8287-1] XDG Desktop Portal vulnerability
Date:
             
 
Thu, 21 May 2026 15:13:40 +0000
Message-ID:
             
 
<E1wQ55g-0003W1-HG@lists.ubuntu.com>
==========================================================================
Ubuntu Security Notice USN-8287-1
May 20, 2026

xdg-desktop-portal vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS

Summary:

XDG Desktop Portal could be made to delete files.

Software Description:
- xdg-desktop-portal: A portal frontend service for Flatpak and other desktop containment
frameworks

Details:

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.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  xdg-desktop-portal              1.20.3+ds-1ubuntu1.1
  xdg-desktop-portal-dev          1.20.3+ds-1ubuntu1.1

Ubuntu 24.04 LTS
  xdg-desktop-portal              1.18.4-1ubuntu2.24.04.2
  xdg-desktop-portal-dev          1.18.4-1ubuntu2.24.04.2

In general, a standard system update will make all the necessary
changes.

References:
  https://ubuntu.com/security/notices/USN-8287-1
  CVE-2026-40354

Package Information:
  https://launchpad.net/ubuntu/+source/xdg-desktop-portal/1...
  https://launchpad.net/ubuntu/+source/xdg-desktop-portal/1...


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