This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-16730 →
DEBIAN-CVE-2026-16730
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...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
dbus-broker
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
dbus-broker
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
dbus-broker
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org