{"id":"CVE-2026-4105","details":"A flaw was found in systemd. The systemd-machined service contains an Improper Access Control vulnerability due to insufficient validation of the class parameter in the RegisterMachine D-Bus (Desktop Bus) method. A local unprivileged user can exploit this by attempting to register a machine with a specific class value, which may leave behind a usable, attacker-controlled machine object. This allows the attacker to invoke methods on the privileged object, leading to the execution of arbitrary commands with root privileges on the host system.","aliases":["GHSA-4h6x-r8vx-3862"],"modified":"2026-04-22T18:29:22.992215430Z","published":"2026-03-13T19:55:13.673Z","related":["SUSE-SU-2026:0990-1","SUSE-SU-2026:0991-1","SUSE-SU-2026:1040-1","SUSE-SU-2026:1061-1","SUSE-SU-2026:20822-1","SUSE-SU-2026:20826-1","SUSE-SU-2026:21003-1","SUSE-SU-2026:21144-1","openSUSE-SU-2026:20471-1"],"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-4105"},{"type":"ADVISORY","url":"https://github.com/systemd/systemd/security/advisories/GHSA-4h6x-r8vx-3862"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2447262"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4105.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H"}]}