CyberMaterial

CyberMaterial

Alerts

Cloudflare Fixes ACME Bug Enabling WAF Bypass

Jan 20, 2026
∙ Paid

Cloudflare recently patched a security vulnerability within its Automatic Certificate Management Environment validation logic that allowed potential attackers to bypass web application firewall prote…

User's avatar

Continue reading this post for free, courtesy of CyberMaterial.

Or purchase a paid subscription.
© 2026 CyberMaterial · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture