Introducing Dynamic Workflows: durable execution that follows the tenant

Cloudflare1d ago

How Cloudflare responded to the “Copy Fail” Linux vulnerability

Cloudflare's Security and Engineering teams quickly assessed the Linux kernel "Copy Fail" vulnerability upon public disclosure on April 29, 2026. They evaluated the exploit technique, checked exposure across their infrastructure, and validated that their existing behavioral detections could identify the exploit pattern within minutes. As a result, there was no impact to the Cloudflare environment, no customer data was at risk, and no services were disrupted at any point. Cloudflare's established procedures ensure that they have already deployed patches for critical vulnerabilities, in this case, allowing them to respond proactively to the issue.

NetworkingSecurity

1 min

Introducing Dynamic Workflows: durable execution that follows the tenant

Building for the future

How Cloudflare responded to the “Copy Fail” Linux vulnerability

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