CVE-2013-4326: Lennart Poettering Rkit

Medium severity, CVSS 4.6. EPSS: 0.4% chance of exploitation in the next 30 days.

RealtimeKit (aka rtkit) 0.5 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288.

Affected products

• Lennart Poettering Rkit: version 0.5 only
• Red Hat Enterprise Linux: version 6.0 only

Published 2013-10-03. Last modified 2026-06-16.