CVE-2026-93676 Xdg-dbus-proxy: xdg-dbus-proxy: filtering for broadcast messages bypasses path/interface/member checks
A flaw in xdg-dbus-proxy allows sandboxed Flatpak applications to bypass D-Bus restrictions and intercept sensitive broadcast signals, leading to information disclosure.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-93676?
CVE-2026-93676 is a low-severity vulnerability in Red Hat Enterprise Linux 10, published on 18 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
xdg-dbus-proxy incorrectly filters D-Bus broadcast messages, bypassing configured path, interface, and member restrictions. This allows a sandboxed Flatpak application to intercept broadcast signals on the D-Bus session bus and AT-SPI bus that should be restricted, potentially exposing sensitive information to unauthorized applications.
Weakness: CWE-284
Which versions are affected by CVE-2026-93676?
How do I fix CVE-2026-93676?
Apply the vendor's patch.
Is CVE-2026-93676 being exploited?
There is no known exploitation of CVE-2026-93676 in the wild and no public exploit code.
Sources
Also known as AZL-105116, DEBIAN-CVE-2026-93676, MGASA-2026-0446, UBUNTU-CVE-2026-93676.