CVE-2026-34080: Flatpak Xdg-Dbus-Proxy

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

xdg-dbus-proxy is a filtering proxy for D-Bus connections. Prior to 0.1.7, a policy parser vulnerability allows bypassing eavesdrop restrictions. The proxy checks for eavesdrop=true in policy rules but fails to handle eavesdrop ='true' (with a space before the equals sign) and similar cases. Clients can intercept D-Bus messages they should not have access to. This vulnerability is fixed in 0.1.7.

Affected products

• Flatpak Xdg-Dbus-Proxy: before 0.1.7 (fixed in 0.1.7)

Published 2026-04-07. Last modified 2026-07-24.