Vercel incident: Elevated Build Errors

Affected components

• Builds

1. resolvedMay 21, 2026, 21:31 UTC

   This incident has been resolved.

2. monitoringMay 21, 2026, 21:20 UTC

   The mitigation was successfully rolled out, and builds are stable.

3. identifiedMay 21, 2026, 19:55 UTC

   The root cause has been identified and we are rolling out a mitigation.

4. identifiedMay 21, 2026, 15:01 UTC

   We are currently investigating elevated build failures affecting a subset of Vite projects. Affected deployments may be timing out. We’ve identified an issue and are working on the fix.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Vercel's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Confluent Cloud: Elevated error rates and latency on produce and consume operations on AWS us-east-1 AZ4Major · May 8, 2026, 01:14 UTC
• Linode: [DirtyFrag] Linux Privilege Escalation VulnerabilityMinor · May 8, 2026, 13:40 UTC
• Linode: [Fragnesia] Linux Privilege Escalation VulnerabilityMinor · May 13, 2026, 21:02 UTC
• Twilio: Subset of AU Sender ID Registration Submissions Directly Transitioning to REJECTEDMinor · May 15, 2026, 20:51 UTC
• Akamai: Reporting Issues affecting URL Traffic and URL Responses reportsMinor · May 19, 2026, 10:13 UTC
• Twilio: SMS Delivery Delays From Twilio to Multiple Networks in Multiple Countries in EuropeMinor · May 19, 2026, 13:21 UTC
• Twilio: SMS Delivery Delays from Twilio Phone Numbers to GTA Wireless United StatesMinor · May 19, 2026, 22:35 UTC
• Twilio: SMS Delivery Failures from Network Subscribers to Twilio Denmark Phone NumbersMinor · May 20, 2026, 07:58 UTC
• Twilio: SMS Delivery Delays from Twilio Phone Numbers to T-Mobile United StatesMinor · May 20, 2026, 15:43 UTC
• Twilio: SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Liberty Mobile Puerto RicoMinor · May 21, 2026, 10:10 UTC

How often does Vercel have incidents?

Vercel reported 24 incidents in the last 90 days, 10 of them major or critical. A typical incident lasted 59 min. See Vercel's uptime and incident history