CVE-2026-34080

EUVD-2026-19945
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
flatpakxdg-dbus-proxy
𝑥
< 0.1.7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xdg-dbus-proxy
bookworm
0.1.4-3+deb12u1
fixed
bookworm (security)
0.1.4-3+deb12u1
fixed
bullseye
vulnerable
bullseye (security)
0.1.2-2+deb11u1
fixed
forky
0.1.7-1
fixed
sid
0.1.7-1
fixed
trixie
0.1.6-1+deb13u1
fixed
trixie (security)
0.1.6-1+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xdg-dbus-proxy
focal
needs-triage
jammy
Fixed 0.1.3-1ubuntu0.1
released
noble
Fixed 0.1.5-1ubuntu0.2
released
questing
Fixed 0.1.6-1ubuntu0.1
released
resolute
not-affected
Common Weakness Enumeration
References
https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-vjp5-hjfm-7677
http://www.openwall.com/lists/oss-security/2026/04/10/15
https://lists.debian.org/debian-lts-announce/2026/04/msg00022.html