---
description: Cloudflare Managed Ruleset 2026-10-22 emergency release
title: WAF Release - 2026-10-22 - Emergency - Cloudflare Managed Ruleset
image: https://developers.cloudflare.com/changelog/post/2026-10-22-emergency-waf-release-cfmr/og.png?v=0ac5f1571474b61e
---

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October 22, 2026

## WAF Release - 2026-10-22 - Emergency - Cloudflare Managed Ruleset

[WAF](https://developers.cloudflare.com/waf/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-10-22-emergency-waf-release-cfmr/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

This emergency release updates the names and metadata of seven existing rules in the Cloudflare Managed Ruleset to identify CVE-2026-109618 and CVE-2026-109619. Detection logic and rule actions remain unchanged.

| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| Cloudflare Managed Ruleset | ...c438d5dd | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...0a0c2f64 | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #2 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...545d163c | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #3 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...212afcc9 | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #4 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...1867b12e | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #5 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...9d9c073d | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #6 | Block | N/A | Rule metadata description refined. Detection unchanged. |
| Cloudflare Managed Ruleset | ...48143645 | N/A | PHP Remote Code Execution Attack (CVE-2026-109618, CVE-2026-109619) #7 | Block | N/A | Rule metadata description refined. Detection unchanged. |

For more information, refer to [WAF Managed Rules](https://developers.cloudflare.com/waf/managed-rules/).

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