CVE-2026-34080

Publication date 7 April 2026

Last updated 13 April 2026

Ubuntu priority

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
xdg-dbus-proxy	25.10 questing	Fixed 0.1.6-1ubuntu0.1
	24.04 LTS noble	Fixed 0.1.5-1ubuntu0.2
	22.04 LTS jammy	Fixed 0.1.3-1ubuntu0.1
	20.04 LTS focal	Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
xdg-dbus-proxy	Upstream: 4d0d1d7

References

Related Ubuntu Security Notices (USN)

USN-8167-1
xdg-dbus-proxy vulnerability
13 April 2026