What role do Cloudflare's WAF (Web Application Firewall) and image resize interact to provide security?

Cloudflare's WAF can be configured to inspect image resize requests for malicious patterns or payloads. While image resizing itself is a legitimate function, the WAF can identify suspicious headers, unusual file extensions, or other indicators of an attack attempt. The WAF can then block or rate-limit these requests, preventing resource exhaustion or exploitation of vulnerabilities within the image resizing process. They provide layered protection.