CVE-2026-93676CWE-284broken-access-control

CVE-2026-93676

Low · published September 18, 2026

CVSS v3.1
3.2
EPSS
0%
Percentile
3.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.2 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00144 · 3.4th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-18T19:17Z
References (3)
https://access.redhat.com/security/cve/CVE-2026-93676 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2537014 · [email protected]http://www.openwall.com/lists/oss-security/2026/09/22/24 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 20 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 18 SEP 14:19Z
    Xdg-dbus-proxy: xdg-dbus-proxy: filtering for broadcast messages bypasses path/interface/member checks
    cvelistv5