---
description: Cloudflare WAF managed rulesets 2026-07-01
title: WAF Release - 2026-07-01
image: https://developers.cloudflare.com/changelog/post/2026-07-01-waf-release/og.png?v=1d25e0b37a76c6d1
---

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July 1, 2026

## WAF Release - 2026-07-01

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-07-01-waf-release/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

This release adds targeted coverage for a path traversal flaw in Fortinet FortiSandbox (CVE-2026-39813) and transitions the Anomaly:Header:User-Agent - Fake Bing or MSN Bot rule action from Block to Disabled.

**Key Findings**

- CVE-2026-39813: A path traversal vulnerability in Fortinet FortiSandbox allows remote, unauthenticated attackers to read arbitrary files from the underlying filesystem due to insufficient validation of user-supplied input paths.

| Ruleset | Rule ID | Legacy Rule ID | Description | Previous Action | New Action | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| Cloudflare Managed Ruleset | ...d84c92c9 | N/A | Fortinet FortiSandbox - Path Traversal - CVE:CVE-2026-39813 | Log | Block | This is a new detection. |
| Cloudflare Managed Ruleset | ...c12cf9c8 | N/A | Anomaly:Header:User-Agent - Fake Bing or MSN Bot | Enabled | Disabled | We are changing the action for this rule from BLOCK to Disabled |

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