Outage in Cloudflare
Issues with TLS certificates using Lets Encrypt CA
Resolved MinorIncident Report
Summary AI Generated
Cloudflare experienced issues with Let's Encrypt TLS certificates due to unsupported CA bundling, causing TLS connectivity problems for visitors to affected customer sites. The incident impacted Cloudflare Sites and Services along with SSL Certificate Provisioning for a subset of customers over 5.7 hours. Cloudflare identified the issue and implemented a fix, while advising customers to switch to a different Certificate Authority as a workaround.
Cloudflare is investigating issues with Let's Encrypt certificates. Some visitors may experience TLS connectivity issues due to potentially unsupported CA bundling for a subset of Cloudflare customers.
Customers are advised to change to a different Certificate Authority as a workaround.
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Latest Updates ( sorted recent to last )
IDENTIFIED
about 13 hours ago - at 05/31/2026 06:41AM
The issue has been identified and a fix is being implemented.
Customers are advised to change to a different Certificate Authority as a workaround.
INVESTIGATING
about 16 hours ago - at 05/31/2026 03:16AM
Cloudflare is investigating issues with Let's Encrypt certificates. Some visitors may experience TLS connectivity issues due to potentially unsupported CA bundling for a subset of Cloudflare customers.
Customers are advised to change to a different Certificate Authority as a workaround.
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