// Cloudflare Blog · 7 May 2026

How Cloudflare responded to the “Copy Fail” Linux vulnerability

When a critical Linux kernel privilege escalation was publicly disclosed, Cloudflare's security and engineering teams detected, investigated, and mitigated the threat across our global fleet, confirming zero customer impact and no malicious exploitation.

Cloudflare Blog

@cloudflare-blog · Chris J Arges

blog.cloudflare.com

Cloudflare Blog@cloudflare-blog