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[WAF] add release note Oct 21 #34486

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93 changes: 93 additions & 0 deletions src/content/changelog/waf/2026-10-21-emergency-waf-release.mdx
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---
title: "WAF Release - 2026-10-21 - Emergency - Cloudflare Managed Ruleset"
description: Cloudflare Managed Ruleset 2026-10-21 emergency release
date: 2026-10-21
---

import { RuleID } from "~/components";

This emergency release adds four rules to the Cloudflare Managed Ruleset to detect anomalous request patterns. Two rules block matching requests, and two log matches without blocking.

<table style="width: 100%">
<thead>
<tr>
<th>Ruleset</th>
<th>Rule ID</th>
<th>Legacy Rule ID</th>
<th>Description</th>
<th>Previous Action</th>
<th>New Action</th>
<th>Comments</th>
</tr>
</thead>
<tbody>
<tr>
<td>Cloudflare Managed Ruleset</td>
<td>
<RuleID id="c1d409ad838f47f59446f21cc438d5dd" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 1</td>
<td>N/A</td>
<td>Block</td>
<td>This is a new detection.</td>
</tr>
<tr>
<td>Cloudflare Free Ruleset</td>
<td>
<RuleID id="4e315666e8e344cdb64119a3b5ccf32f" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 1</td>
<td>N/A</td>
<td>Block</td>
<td>This is a new detection.</td>
</tr>
<tr>
<td>Cloudflare Managed Ruleset</td>
<td>
<RuleID id="f9a45927414245e3a64bb12d0a0c2f64" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 2</td>
<td>N/A</td>
<td>Log</td>
<td>This is a new detection.</td>
</tr>
<tr>
<td>Cloudflare Managed Ruleset</td>
<td>
<RuleID id="771c654ae1154d4daa72f4e1545d163c" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 3</td>
<td>N/A</td>
<td>Block</td>
<td>This is a new detection.</td>
</tr>
<tr>
<td>Cloudflare Free Ruleset</td>
<td>
<RuleID id="48ddf592361e4fdb97a8a85982dab691" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 3</td>
<td>N/A</td>
<td>Block</td>
<td>This is a new detection.</td>
</tr>
<tr>
<td>Cloudflare Managed Ruleset</td>
<td>
<RuleID id="217005865f0145f392300bac212afcc9" />
</td>
<td>N/A</td>
<td>Generic Rules - Anomalous Execution - 4</td>
<td>N/A</td>
<td>Log</td>
<td>This is a new detection.</td>
</tr>
</tbody>
</table>

For more information, refer to [WAF Managed Rules](/waf/managed-rules/).
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