Is CVE-2026-94422 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-94422 being exploited in the wild.

How severe is CVE-2026-94422?

High severity, with a CVSS score of 8.8, published 2 October 2026.

Which products and versions are affected?

Flatpak Xdg-Dbus-Proxy before 0.1.9.

Is there a fix for CVE-2026-94422?

Yes: fixed in 0.1.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-94422 attacked?

It is attacked over the network or from the adjacent network, in a software library.

Am I affected by CVE-2026-94422?

Check whether you run Flatpak Xdg-Dbus-Proxy at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-94422: xdg-dbus-proxy message filtering bypass in D-Bus proxy

CVE-2026-94422 · Severity: high · CVSS 8.8 · Published 2026-10-02

xdg-dbus-proxy is a filtering proxy that enforces sandbox boundaries for containerized applications like Flatpak. An attacker can bypass message filtering by manipulating reply serial numbers, allowing a compromised app to execute code outside its sandbox and potentially compromise the entire system.

Vendors: Flatpak.

Quick answers

Is CVE-2026-94422 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-94422 being exploited in the wild.
How severe is CVE-2026-94422?: High severity, with a CVSS score of 8.8, published 2 October 2026.
Which products and versions are affected?: Flatpak Xdg-Dbus-Proxy before 0.1.9.
Is there a fix for CVE-2026-94422?: Yes: fixed in 0.1.9. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-94422 attacked?: It is attacked over the network or from the adjacent network, in a software library.
Am I affected by CVE-2026-94422?: Check whether you run Flatpak Xdg-Dbus-Proxy at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 0.1.9

Technical details

An incorrect implementation of D-Bus message filtering in xdg-dbus-proxy before 0.1.9 allows bypass of intended access controls by setting a reply serial number on non-reply messages. The vulnerability affects the sandbox boundary enforcement mechanism; a malicious or compromised Flatpak application can exploit this via the D-Bus session bus to escape its sandbox isolation.

Affected products

Flatpak xdg-dbus-proxy before 0.1.9

Timeline

2026-10-02: disclosed

References

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