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Site generated: 2026-03-07 00:04:06 UTC 3/7/2026, 12:04:06 AM local
Home / Vercel / Incident Details

Elevated Errors on Middleware Invocations

Resolved Unknown Incident
Started
Fri, Mar 6, 2026, 09:38 PM UTC
Last Updated
Fri, Mar 6, 2026, 09:38 PM UTC
Resolved
N/A
This incident has been resolved (Total duration: 2h 26m)

AI-Powered Analysis

Impact Severity
major
Categories
middleware compute
Affected Users
all-users
Root Cause Analysis
Elevated errors on middleware invocations for deployments created between 11:20 UTC and 15:14 UTC
Analysis performed by anthropic.claude-3-haiku-20240307-v1:0 on Sat, Mar 7, 2026, 12:02 AM UTC

Incident History

Mar 6, 21:38 UTC
Resolved - This incident has been resolved.

Mar 6, 21:20 UTC
Monitoring - A fix has been applied and we are seeing recovery for affected deployments. We are continuing to monitor.

Mar 6, 19:18 UTC
Update - We are applying a fix for the deployments experiencing elevated errors.

We continue to recommend redeploying if you are seeing errors on deployments created between 11:20 UTC and 15:14 UTC. Deployments created outside of this window are unaffected and no action is required. Additionally, deployments with middleware on the Node runtime are unaffected.

Mar 6, 15:25 UTC
Identified - Some deployments created between 11:20 UTC and 15:14 UTC with Edge Middleware may be seeing elevated errors. Deployments created outside of this time window are unaffected. If you are experiencing issues, we recommend redeploying.

External Resources