PubNub outage, 9 June 2026
Global Errors and Failures with Publish and Functions, Delays with Events & Actions
- Started
- Resolved
- 9 Jun 2026, 14:00 UTC
- Impact
- Not stated
Last update from PubNub
### **Problem Description, Impact, and Resolution** At approximately **13:20 UTC on June 9, 2026**, we observed elevated publish errors and message replication failures in our publish/subscribe service, which also caused latency in other PubNub services globally. Customers may have experienced increased publish error rates, delayed or missed message delivery, delayed message persistence, and increased latency for Functions and Events & Actions workflows. The root cause of the incident was an unusually large concentration of global publish traffic that was not limited by our throttling layers. That traffic created resource pressure in the publish and replication layers, increased load o...
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