SECOPS

Real-Time Cloudflare WAF Change Alert via Audit Log Webhook

Receives Cloudflare audit-log change events as they happen, checks whether the edited WAF rule matches the GitHub baseline.

CategorySecOps
Enginesim
Difficultyadvanced
Triggerwebhook
Steps5
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerCloudflare audit-log change webhook arrivesHTTP webhook
  • LogicFilter to firewall and WAF rule events
  • ActionFetch baseline rule definition from GitHubGitHubGitHub
  • LogicCheck if change is approved in baseline
  • OutputSend urgent unapproved-change alert to SlackSlack

What it does

Instead of waiting for a daily sweep, this catches WAF changes the moment they occur. A Cloudflare audit-log webhook delivers each firewall or WAF rule edit, the workflow confirms whether the change matches an approved baseline commit in GitHub, and unapproved edits trigger an instant Slack alert naming the actor and the rule.

When to use it

Use it for high-stakes zones where an unauthorized firewall change must be noticed in minutes, not hours. It is the early-warning companion to a scheduled drift audit and is especially useful during incident windows when operators are editing rules live.

How it works

  1. 1A webhook trigger receives a Cloudflare audit-log change event.
  2. 2A filter logic step keeps only firewall and WAF rule mutations, dropping unrelated audit entries.
  3. 3The GitHub step fetches the current baseline definition for the affected rule.
  4. 4A comparison logic step decides whether the live change is already reflected in the approved baseline.
  5. 5If the change is unapproved, Slack receives an urgent alert with the actor, timestamp, rule name, and before/after expression.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect HTTP webhookTrigger any URL on agent actions.
  2. 2
    Connect GitHubRepos, issues, pull requests, actions.
  3. 3
    Connect SlackChannels, DMs, threads, mentions.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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