SECURITY: Ubuntu Servers went offline from DDos Attack

Image from ArsTechnica¹

If you had trouble updating Ubuntu or and some derived Linux distributions earlier this month (as of drafting this 7 May 2026), you are not alone. Canonical, owner of Ubuntu, encountered a Distributed Denial of Service (DDoS) attack² by an alleged Iranian sympathetic group (Team 313)³. The attack seemed to have lasted for a few days. URLs affected for an extended duration of time includes¹:

• security.ubuntu.com
• jaas.ai
• archive.ubuntu.com
• canonical.com
• maas.io
• blog.ubuntu.com
• developer.ubuntu.com
• Ubuntu Security API – CVEs
• Ubuntu Security API – Notices
• academy.canonical.com
• ubuntu.com
• portal.canonical.com
• assets.ubuntu.com

VERSIONS

2026v.0.1.0

REFERENCES

1. ArsTechnica Ubuntu infrastructure has been down for more than a day and image ↩ ↩²

2. Wikipedia Denial-of-service attack ↩

3. PCMag Pro-Iran Hackers Hit Ubuntu's Canonical With DDoS, Float Extortion Demand ↩