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Fencer Vulns
low 3.2

CVE-2026-93676 json

Xdg-dbus-proxy: xdg-dbus-proxy: filtering for broadcast messages bypasses path/interface/member checks

published 2026-09-18 52 d ago modified 2026-09-22 47 d ago also EUVD-2026-82937

cvss
3.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

xdg-dbus-proxy incorrectly filters D-Bus broadcast messages, bypassing configured path, interface, and member restrictions. This allows a sandboxed Flatpak application to intercept broadcast signals on the D-Bus session bus and AT-SPI bus that should be restricted, potentially exposing sensitive information to unauthorized applications.

Patch / fix

  • xdg-dbus-proxy Debian 13 0.1.6-1+deb13u2
  • xdg-dbus-proxy Debian 14 0.1.8-1

debian advisories DEBIAN-CVE-2026-93676

  • xdg-dbus-proxy openSUSE Tumbleweed 0.1.9-1.1
  • flatpak openSUSE Tumbleweed 1.18.3-1.1

opensuse advisories openSUSE-SU-2026:11913-1openSUSE-SU-2026:11873-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-93676 updated cvss 3.2

xdg-dbus-proxy: xdg-dbus-proxy: filtering for broadcast messages bypasses path/interface/member checks

  • Red Hat Enterprise Linux 9 xdg-dbus-proxy, xdg-dbus-proxy 0.1.5-4.el10 Red Hat Enterprise Linux 10 xdg-dbus-proxy 0.1.5-4.el10
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
51 d ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.