App Router is a technology platform tracked across 2 threat clusters and 2 intelligence report mentions on ThreatCluster. First observed December 11, 2025; most recent activity May 8, 2026.
Multiple critical vulnerabilities affecting React Server Components and .js have been disclosed, including denial of service, server-side request forgery, and middleware bypass issues. These flaws impact versions 13.x…
Two vulnerabilities have been identified in the React Server Components (RSC) protocol during a security review of patches for React2Shell. These vulnerabilities do not allow for Remote Code Execution, and the existing…