It was discovered that systemd-homed did not properly verify the signature of records. A local attacker could possibly use this issue to add arbitrary system groups to a logged-in user and gain elevated privileges. ( CVE-2026-16742 ) It was discovered that systemd-machined incorrectly handled certain polkit authorization checks. A local attacker could possibly use this issue to terminate arbitrary processes, including privileged ones. This issue only affected Ubuntu 26.04 LTS. ( CVE-2026-15060 ) It was discovered that systemd-oomd did not properly validate certain IPC requests. A local attacker could possibly use this issue to terminate arbitrary processes. ( CVE-2026-15059 )
It was discovered that systemd-homed did not properly verify the signature of records. A local attacker could possibly use this issue to add arbitrary system groups to a logged-in user and gain elevated privileges. ( CVE-2026-16742 )
It was discovered that systemd-machined incorrectly handled certain polkit authorization checks. A local attacker could possibly use this issue to terminate arbitrary processes, including privileged ones. This issue only affected Ubuntu 26.04 LTS. ( CVE-2026-15060 )
It was discovered that systemd-oomd did not properly validate certain IPC requests. A local attacker could possibly use this issue to terminate arbitrary processes. ( CVE-2026-15059 )
It was discovered that systemd-homed did not properly verify the signature of records. A local attacker could possibly use this issue to add arbitrary system groups to a logged-in user and gain elevated privileges. ( CVE-2026-16742 ) It was discovered that systemd-machined incorrectly handled certain polkit authorization checks. A local attacker could possibly use this issue to terminate arbitrary processes, including privileged ones. This issue only affected Ubuntu 26.04 LTS. ( CVE-2026-15060 ) It was discovered that systemd-oomd did not properly validate certain IPC requests. A local attacker could possibly use this issue to terminate arbitrary processes. ( CVE-2026-15059 )
It was discovered that systemd-homed did not properly verify the signature of records. A local attacker could possibly use this issue to add arbitrary system groups to a logged-in user and gain elevated privileges. ( CVE-2026-16742 )
It was discovered that systemd-machined incorrectly handled certain polkit authorization checks. A local attacker could possibly use this issue to terminate arbitrary processes, including privileged ones. This issue only affected Ubuntu 26.04 LTS. ( CVE-2026-15060 )
It was discovered that systemd-oomd did not properly validate certain IPC requests. A local attacker could possibly use this issue to terminate arbitrary processes. ( CVE-2026-15059 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
