---
id: CVE-2026-93676
title: >-
  xdg-dbus-proxy incorrectly filters D-Bus broadcast messages, bypassing
  configured path, interface, and member restrictions
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 bu…
severity: low
cvss: 3.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N'
cwe:
  - CWE-284
vendor: Red Hat
product: xdg-dbus-proxy
affected:
  - xdg-dbus-proxy (all versions)
  - xdg-dbus-proxy (all versions)
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T23:17:08.413'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93676'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93676'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2537014'
    label: secalert@redhat.com
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/22/24'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93676.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93676'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93676'
  - url: >-
      https://github.com/flatpak/xdg-dbus-proxy/security/advisories/GHSA-r7hp-698j-2h6c
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-18T15:10:24.926555Z'
epss: 0.00144
epssPercentile: 0.0306
ingestedAt: '2026-09-18T14:43:13.068Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Low · updated 2026-09-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93676.json)