At 2347 UTC on July 19, 2024 a certificate rotation for login.linode.com failed to occur. We observed a denial of signups and login requests using username and password authentication (Github and Google logins were not affected.)
At approximately 0400 UTC on July 20, 2024 the failed certificate was identified and rotated by Cloud Manager SMEs. At 0525 UTC it was confirmed that login functionally was restored completely and logins and signups were no longer impacted.
This summary provides an overview of our current understanding of the incident given the information available. Our investigation is ongoing and any information herein is subject to change.