Insufficient Granularity of Access Control Affecting systemd/systemd package, versions [225,226)[259-rc1,259.4)[260-rc1,260-rc3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published18 Mar 2026
- disclosed13 Mar 2026
- creditAsim Viladi Oglu Manizada
Introduced: 13 Mar 2026
CVE-2026-4105 (opens in a new tab)How to fix?
Upgrade systemd/systemd to version 226, 259.4, 260-rc3 or higher.
Overview
Affected versions of this package are vulnerable to Insufficient Granularity of Access Control in the systemd-machined servicedue to insufficient validation of the RegisterMachine D-Bus method's class parameter. An attacker can gain elevated privileges by registering a machine with a crafted class value, which may result in the creation of an attacker-controlled machine object. This object can then be used to invoke privileged methods, potentially leading to arbitrary command execution with root privileges on the host system.