Catalog / Cloudflare Developer Platform

WAF - WAF Release - 2026-09-08

todaysecurityOriginal notes

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

RulesetRule IDLegacy Rule IDDescriptionPrevious ActionNew ActionComments
Cloudflare Managed Ruleset...c76ba662N/ANext.js - Image Optimizer Remote Code Execution via Crafted AVIF - BetaLogBlockThis rule is merged into the original rule "Next.js - Image Optimizer Remote Code Execution via Crafted AVIF" (ID: ...80256efe).
Cloudflare Managed Ruleset...208457cfN/ANext.js - Remote Code Execution - CVE:CVE-2026-75604 - BetaLogBlockThis rule is merged into the original rule "Next.js - Remote Code Execution - CVE:CVE-2026-75604" (ID: ...2ca6cce3).