========================================================================== Ubuntu Security Notice USN-8167-2 May 26, 2026
xdg-dbus-proxy vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
xdg-dbus-proxy could be made to expose sensitive information.
Software Description:
- xdg-dbus-proxy: A filtering proxy for D-Bus connections
Details:
USN-8167-1 fixed a vulnerability in xdg-dbus-proxy. This update
provides the corresponding update for Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that xdg-dbus-proxy incorrectly handled eavesdropping
in policy rules. A local attacker could possibly use this issue to
intercept certain D-Bus messages.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
xdg-dbus-proxy 0.1.2-1ubuntu0.1~esm1
Available with Ubuntu Pro
After a standard system update you need to restart your session to make all
the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8167-2
https://ubuntu.com/security/notices/USN-8167-1
CVE-2026-34080
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