Brevo: A Cloudflare Worker That Rewrote a Marketing Platform in Flight

Brevo: A Cloudflare Worker That Rewrote a Marketing Platform in Flight On 14 September 2026, attackers used a long-lived Cloudflare API key to publish a malicious Cloudflare Worker in Brevo's account. The worker rewrote HTTP responses at the edge for roughly four hours, and because the origin was never touched, file hashes and conventional... Weiterlesen