CVE-2026-64643 Next.js: Unauthenticated Disclosure of Internal Server Function endpoints

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...

CVE-2026-64643

CVE-2026-64643 affects Next.js (versions 12.0.0–15.5.20 and 16.0.0–16.2.10) where apps using App Router, Server Actions (use server) or cache endpoints can disclose internal Server Action IDs and endpoints to unauthenticated users via publicly served client artifacts. This disclosure allows unaut...

CVE-2026-64642 Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue h...

CVE-2026-64642 Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue h...

CVE-2026-64642

CVE-2026-64642 affects Next.js (16.0.0–16.2.10) where crafted requests to App Router apps built with Turbopack and a single locale entry in config.i18n.locales can bypass middleware or proxy authentication. Root cause: improper handling of authentication flow under specific App Router configurati...

EUVD-2026-49382

Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue h...

CVE-2026-64642 Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue h...

EUVD-2026-49381

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-2026-64641 Next.js: Denial of Service in App Router using Server Actions

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-2026-64641

Next.js CVE-2026-64641 describes a denial-of-service in App Router when using at least one Server Action. Affected versions are 13.0.0–15.5.20 and 16.0.0–16.2.10; crafted requests can cause excessive CPU usage that blocks processing of further requests within the same process. The issue is fixed ...

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-2026-64641 Next.js: Denial of Service in App Router using Server Actions

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-2026-64641 Next.js: Denial of Service in App Router using Server Actions

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...

Next.js Framework 16.x < 16.2.11 Middleware Bypass

The Next.js Framework on the remote host is affected by an authentication bypass vulnerability: - Crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. CVE-2026-64642 Note...

Next.js Framework 13.x < 15.5.21 / 16.x < 16.2.11 DoS

The Next.js Framework on the remote host is affected by a denial of service vulnerability: - 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 requests in the same process. CVE-2026-64641...

Denial Of Service

Next.js is vulnerable to Denial Of Service. The vulnerability is due to improper handling of crafted requests targeting applications using the App Router with Server Actions, allowing attackers to trigger excessive CPU usage and block processing of further requests...

Denial Of Service (DoS)

Next.js is vulnerable to Denial Of Service DoS. The vulnerability is due to improper handling of requests targeting App Router applications with Server Actions running on the Edge runtime, allowing attackers to trigger excessive memory consumption and degrade application availability...

Next.js: Unbounded Server Action payload in Edge runtime

Impact Requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime Workarounds If you cannot upgrade, ensure your hosting provider limits the request's body size. 5 MiB should be...

GHSA-4C39-4CCG-62R3 Next.js: Unbounded Server Action payload in Edge runtime

Impact Requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime Workarounds If you cannot upgrade, ensure your hosting provider limits the request's body size. 5 MiB should be...

GHSA-955P-X3MX-JCVP Next.js: Unauthenticated disclosure of internal Server Function endpoints

Impact In 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 endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts for...