Cloudflare Workers API Latency and Upload Issues April 2026

What happened

Cloudflare Workers experienced two separate service disruptions in April 2026. On April 15, increased API latency affected Workers Builds via webhooks from git repositories, lasting approximately 90 minutes from 14:37 to 16:07 UTC. The following day, script upload functionality failed completely for 9 minutes between 14:51 and 15:00 UTC on April 16. Cloudflare confirmed that existing Workers traffic remained unaffected during both incidents, with only deployment and management operations impacte

Business impact

Teams using Workers for serverless functions faced deployment delays and potential CI/CD pipeline failures during the outages. Organizations with automated deployment processes tied to git webhooks would have experienced build failures, potentially blocking scheduled releases or hotfixes.

Background

Cloudflare Workers has become a critical deployment platform for edge computing and serverless functions at enterprise scale. Many organizations integrate Workers deployments into their continuous integration workflows, making API reliability essential for maintaining deployment velocity. The short duration of these incidents reflects Cloudflare's infrastructure maturity, though any deployment dis

What this means for your team

Review your deployment pipeline resilience for Workers-dependent applications. Implement retry logic in CI/CD workflows that can handle temporary API failures. Consider staging deployment windows to avoid critical release periods, and ensure your monitoring covers deployment API endpoints, not just

What to watch

Monitor Cloudflare's incident post-mortems for root cause details and prevention measures. Track whether similar API stability issues emerge in other Cloudflare services that might indicate broader infrastructure concerns.