Web application firewalls

Security fixes and enhancements to Cloud Armor preconfigured WAF v33-stable rulesets.

For more information, see Tuning Google Cloud Armor WAF rules.

Security fixes and enhancements to Cloud Armor preconfigured WAF stable rulesets for v3.0.

For more information, see Tuning Google Cloud Armor WAF rules.

WAF Release - 2026-10-14 - Emergency

This emergency release adds a new managed rule to block active exploitation of a critical remote code execution (RCE) vulnerability found in popular web frameworks.

Cloud Armor supports service rate limiting.

For more information, see Cloud Armor and service rate limiting. This feature is available in Preview.

WAF Release - 2026-10-12

This release introduces new detections to mitigate recent vulnerabilities affecting TanStack and Atlassian products.

WAF Release - Scheduled changes for 2026-10-19

Announcement Date Release Date Release Behavior Legacy Rule ID Rule ID Description Comments 2026-10-12 2026-10-19 Log N/A d60e605ed36842df9ca0232f5ea9966d Broken Access Control - Directory Traversal (Beta) This rule will be merged into the original rule "Broken Access Control -…

Failed detections field available in Rules

You can now use cf.appsec.request.failed_detections to control how your rules handle requests when a security detection reports a failure.

Generally Available: Exceptions in WAF for Azure Application Gateway and Azure Front Door

Announcing the general availability of exceptions for Web Application Firewall on Azure Application Gateway and Azure Front Door.

Updated unsafe topic detection for AI Security for Apps

AI Security for Apps now supports an updated set of categories for detecting unsafe topics in incoming prompts.

WAF Release - 2026-10-06

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.

Public Preview: IPv6 Support for Application Gateway WAF

Announcing the Public Preview of IPv6 support for Application Gateway WAF.

WAF Release - 2026-10-01 - Emergency

This update provides immediate defense against a vulnerability affecting Citrix NetScaler ADC and Gateway appliances, deploying protection against improper input validation vectors.

WAF Release - 2026-09-30

This release introduces new detections to enhance protection against a specific GitLab path traversal vulnerability, alongside advanced generic rules targeting HTTP request smuggling, directory traversal, and command injection attempts.

WAF Release - 2026-09-25 - Emergency

This update provides immediate defense against critical vulnerabilities affecting WordPress and JFrog Artifactory, including path traversal, local file inclusion (LFI), cross-site scripting (XSS), and authentication bypass exploits.

AWS Network Security Manager is now generally available in US East (N. Virginia) Region

Today, AWS announces the general availability of AWS Network Security Manager, a comprehensive network security management solution designed to simplify security policy deployment and enforcement at scale.

WAF Release - 2026-09-22

This release introduces new threat detections to enhance protection against Server-Side Request Forgery (SSRF) attempts using non-standard IP notations or jar loopback payloads, alongside new defenses against Server-Side Template Injection (SSTI) targeting Jinja environments.

Cloud Armor managed rulesets protect your backend services and APIs from a wide range of web application threats using threat signatures which are…

Cloud Armor managed rulesets protect your backend services and APIs from a wide range of web application threats using threat signatures which are automatically kept up-to-date. For more information, see Managed rules overview. This feature is available in Preview.

WAF Release - 2026-09-15

This release introduces new threat detections to enhance protection against command injection attempts, Server-Side Request Forgery (SSRF) targeting cloud metadata, and information disclosure within version control history.

WAF Release - 2026-09-10 - Emergency

This update provides immediate defense against a high-severity, actively exploited zero-day vulnerability targeting Adobe Commerce and Magento Open Source storefronts.

WAF Release - 2026-09-08

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