[Pkg-utopia-maintainers] Bug#1142850: dbus-broker: CVE-2026-16730

[Salvatore Bonaccorso]

Source: dbus-broker
Version: 37-2
Severity: important
Tags: security upstream
Forwarded: https://github.com/bus1/dbus-broker/issues/435
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for dbus-broker.

CVE-2026-16730[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-16730
    https://www.cve.org/CVERecord?id=CVE-2026-16730
[1] https://github.com/bus1/dbus-broker/issues/435

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore