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/(\"WAFFlags\":\"1\"|\"FirewallMatchesActions\":\[\"log\"\]|\"FirewallMatchesActions\":\[\"log\",\"log\"\]|\"FirewallMatchesSources\":\[\"firewallRules\",\"waf\"\]|\"FirewallMatchesActions\":\[\"block\"\]|\"FirewallMatchesActions\":\[\"challengeSolved\"\]|\"FirewallMatchesActions\":\[\"challenge\"\])/gsPCRE2+45 years ago✓ Pre-loaded

About this regex

This regex matches Cloudflare WAF-related log entries by detecting specific marker strings such as "WAFFlags":"1" and various "FirewallMatchesActions" or "FirewallMatchesSources" values. It is useful for filtering security events from Cloudflare logs, including actions like log, block, and challenge.

cloudflare waf firewall logging security

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