Temporal Cloud: Elevated error rates for cross-region traffic between US AWS regions

AWS us-east-1 outage, Oct 9, 2026 · 17 vendors, 18 incidents

Temporal Cloud’s incident started in the same window without naming AWS (timing only, not evidence of a link). (hop 1, posted −7 min vs the first vendor naming AWS)

“…Elevated error rates for cross-region traffic between US AWS regions Between 18:41 and 18:54 UTC on October 9, 2026, cross-region traffic to and from AWS us-east-1, us-east-2, and us-west-2 may have s…”

flowchart LR
  root["AWS us-east-1<br/>own incident not archived"]:::inferred
  h1["Within an hour<br/>5 vendors, 2 blamed AWS<br/>Convex, Temporal Cloud, JFrog, PlanetScale +1"]:::blames
  root --> h1
  later["Later<br/>1 vendor, 1 blamed AWS<br/>Chargebee"]:::blames
  root --> later
  me["Temporal Cloud (this incident)<br/>posted −7 min"]:::me
  root -.->|"same window"| me

Full event: timeline, evidence and all vendors →

Detected automatically from incidents that started together and named the same provider. A link means one vendor’s incident named another, not a confirmed cause.