Introduction to the Outage
The Ubuntu infrastructure has been experiencing a significant outage, with multiple sites remaining unavailable for over a day. This includes security.ubuntu.com, jaas.ai, and archive.ubuntu.com, among others. The outage occurred shortly after researchers released exploit code that could allow untrusted users to gain root control of servers running Linux distributions, including Ubuntu.
Impact on Security Guidance
The outage has limited Ubuntu's ability to communicate security guidance to affected users. However, updates remain available from mirror sites. This highlights the importance of having alternative sources of information and updates, especially during times of infrastructure outages. The cause of the outage is unclear, but it is possible that it may be related to the released exploit code or other factors such as DDoS attacks.
Source
Original reporting by Ars Technica (https://arstechnica.com/security/2026/05/ubuntu-infrastructure-has-been-down-for-more-than-a-day/).