CVE-2026-34080CWE-1289

xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception

Medium · published April 7, 2026

CVSS v4.0
6.8
EPSS
0%
Percentile
5.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.8 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00163 · 5.3th percentile
Weakness
CWE-1289 · Improper Validation of Unsafe Equivalence in Input
Published
2026-04-07T20:57Z
EPSS history
Timeline
  • 07 APR 20:57Z
    xdg-dbus-proxy has an eavesdrop filter bypass allowing message interception
    cvelistv5