---
description: Cloudflare WAF managed rulesets 2026-10-06 release
title: WAF Release - 2026-10-06
image: https://developers.cloudflare.com/changelog/post/2026-10-06-waf-release/og.png?v=35c7686b6ed70be0
---

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October 6, 2026

## WAF Release - 2026-10-06

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-10-06-waf-release/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

This release introduces a new detection to mitigate a heap-based buffer overflow vulnerability in F5 BIG-IP, and enhances existing command injection protections by incorporating tested beta logic into the baseline rule.

**Key Findings**

- CVE-2026-94127: A heap-based buffer overflow vulnerability in F5 BIG-IP. Attackers can exploit this flaw to execute arbitrary code on the affected system.

| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| Cloudflare Managed Ruleset | ...a056caff | N/A | Command Injection - Generic 8 - uri - Beta | Log | Block | This rule is merged into the original rule "Command Injection - Generic 8 - uri" (ID: ...ee159e2e). |
| Cloudflare Managed Ruleset | ...7206c737 | N/A | F5 BIG-IP - UnAuth Heap-Overflow - CVE:CVE-2026-94127 | Log | Block | This is a new detection. |
| Cloudflare Managed Ruleset | ...549f7356 | N/A | Next.js - Cache Poisoning - CVE:CVE-2026-94543 | Block | Block | Rule metadata description refined. Detection unchanged. |

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