Improper Handling of Exceptional Conditions Affecting dbus-broker package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-DEBIAN14-DBUSBROKER-18299965
  • published25 Jul 2026
  • disclosed24 Jul 2026

Introduced: 24 Jul 2026

CVE-2026-16730  (opens in a new tab)
CWE-755  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 dbus-broker.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dbus-broker package and not the dbus-broker package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

A flaw was found in dbus-broker. When the process file-descriptor limit is reached, EMFILE/ENFILE errors during peer setup (notably SO_PEERPIDFD) are handled as fatal failures, causing the broker to exit. A local attacker who can open many connections to the user session bus can trigger this and deny service to the desktop session. Flatpak applications can reach the host session bus through the dbus proxy.

CVSS Base Scores

version 3.1