CVE-2026-64646

CVE-2026-64646 affects Next.js versions 13.0.0–15.5.20 and 16.0.0–16.2.10 where App Router Server Actions running in the Edge runtime can cause unbounded memory growth from oversized Server Action payloads. Impact is excessive memory consumption; fix is upgrade to Next.js 15.5.21 or 16.2.11 (or l...

CVE-2026-64641

Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive CPU usage blocking processing of further...

CVE-2026-64643

Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions use server or use cache endpoints can be disclosed bypassing any authentication on the pages where these...

Allocation of Resources Without Limits or Throttling

Overview next is a react framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the handleAction Server Actions path in the App Router Edge runtime. An attacker can exhaust server memory by sending an oversized Server Action request...