3.2

CVE-2026-93676: xdg-dbus-proxy Improper Access Control

CVSS: 3.2v3.1LowAwaiting analysis
AliasesMGASA-2026-0446UBUNTU-CVE-2026-93676DEBIAN-CVE-2026-93676
Published 18-09-2026Last modified 22-09-2026
Open JSON

Vulnerability summary

CVE-2026-93676 is a low (CVSS 3.2) Improper Access Control vulnerability in xdg-dbus-proxy. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.3% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.2/10
010
Low · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:11873-1OPENSUSE-SU-2026:11913-1

Timeline

  1. 18-09-2026
    PublishedVulnerability first disclosed.
  2. 22-09-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

+0.05 pp

From 0.10% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mageia2 products
  • xdg-dbus-proxy< 0.1.8-1.mga10
  • xdg-dbus-proxy< 0.1.8-1.mga9
Debian1 product
  • xdg-dbus-proxy< 0.1.6-1+deb13u2 | < 0.1.8-1
Ubuntu1 product
  • xdg-dbus-proxyAll versions (No fix recorded)

3 vendors · 4 products

References

11 links
Show all 11 references