Increased Subscribe error rate and latency observed globally

Incident Report for PubNub

Resolved

Starting at 17:32 UTC on October 9, 2026 we observed elevated 5XX error rates and latency on the Subscribe endpoint globally. The issue was resolved by 18:18 UTC and services have returned to normal levels. A limited number of customers may have been affected.

A root cause analysis will be published in the coming days.

We sincerely apologize for any impact this may have caused. If you feel you were affected and wish to discuss, please email support@pubnub.com.
Posted Oct 09, 2026 - 17:30 UTC