---
description: Cloudflare WAF managed rulesets 2026-09-08 release
title: WAF Release - 2026-09-08
image: https://developers.cloudflare.com/changelog/post/2026-09-08-waf-release/og.png?v=d86ff1aaabcd57e1
---

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September 8, 2026

## WAF Release - 2026-09-08

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-09-08-waf-release/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

This release enhances detection logic for existing rules targeting Next.js remote code execution (RCE) vulnerabilities by consolidating active beta rules into baseline signatures.

| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| Cloudflare Managed Ruleset | ...c76ba662 | N/A | Next.js - Image Optimizer Remote Code Execution via Crafted AVIF - Beta | Log | Block | This rule is merged into the original rule "Next.js - Image Optimizer Remote Code Execution via Crafted AVIF" (ID: ...80256efe). |
| Cloudflare Managed Ruleset | ...208457cf | N/A | Next.js - Remote Code Execution - CVE:CVE-2026-75604 - Beta | Log | Block | This rule is merged into the original rule "Next.js - Remote Code Execution - CVE:CVE-2026-75604" (ID: ...2ca6cce3). |

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