CVE-2026-64649 Next.js: Server-Side Request Forgery in Server Actions on Custom Servers

Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forger...

CVE-2026-64649 Next.js: Server-Side Request Forgery in Server Actions on Custom Servers

Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forger...

EUVD-2026-49571

Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forger...

CVE-2026-64649 Next.js: Server-Side Request Forgery in Server Actions on Custom Servers

Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20 and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forger...

CVE-2026-64649

Next.js SSRF vulnerability CVE-2026-64649 affects Next.js versions 14.1.1–15.5.20 and 16.0.0–16.2.10 when a Server Action forwards or redirects a request. An attacker who can control Host-related headers can cause the server to send outbound requests to a malicious host, via Server Actions on cus...

CVE-2026-64646

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, 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...

CVE-2026-64646

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, 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...

CVE-2026-64646 Next.js: Unbounded Server Action payload in Edge runtime

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, 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...

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...

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

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 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-2026-64641

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: 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...

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 14.1.1 < 15.5.21 / 16.x < 16.2.11 SSRF

The Next.js Framework on the remote host is affected by a server-side request forgery vulnerability: - When a Server Action forwards or redirects a request, an attacker can cause the server to send that outbound request to a malicious host Server-Side Request Forgery. This requires the attacker's...

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...