CVE-2026-34080 — xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception

Description (CNA)

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 (CNA)

Vendor / product	Versions
flatpak / xdg-dbus-proxy	affected < 0.1.7

CWE

CWE-1289

References

https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/04/10/15
https://lists.debian.org/debian-lts-announce/2026/04/msg00022.html