CVE-2026-64649

A flaw was found in Next.js, a framework for building web applications. A remote attacker can exploit this vulnerability by manipulating Host-associated headers when a Server Action forwards or redirects a request. This can lead to Server-Side Request Forgery SSRF, where the server is tricked int...

EUVD-2026-49401

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-2026-64646 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-2026-64646

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...

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 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-2026-64649: Server-Side Request Forgery (SSRF)

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-2026-64646: Allocation of Resources Without Limits or Throttling

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...

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...

CVE-2026-64641: Excessive Iteration

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...

Sensitive Information Exposure

Next.js is vulnerable to Sensitive Information Exposure. The vulnerability is due to exposure of Server Action identifiers in publicly served client artifacts, allowing unauthenticated attackers to discover protected Server Action endpoints and bypass authentication through endpoint enumeration...

Server-Side Request Forgery

Next.js is vulnerable to Server-Side Request Forgery SSRF. The vulnerability is due to improper validation of Host-associated headers during Server Action forwards and redirects, allowing attackers to redirect outbound requests to malicious or internal hosts and potentially expose sensitive...

NPM: Next.js: Unbounded Server Action payload in Edge runtime

NPM: Next.js: Unbounded Server Action payload in Edge runtime vulnerability discovered by ? in WordPress Npm next versions = 13.0.0, 15.5.21...

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...

Insertion of Sensitive Information Into Sent Data

Overview next is a react framework. Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data in action-handler.ts and action-utils.ts. An attacker can enumerate internal Server Action IDs by sending crafted Next-Action requests or probing client-served...

PT-2026-63561

Name of the Vulnerable Software and Affected Versions Next.js versions 13.0.0 through 15.5.20 Next.js versions 16.0.0 through 16.2.10 Description Requests targeting applications using App Router with at least one Server Action can lead to excessive memory consumption when that Server Action...

NPM: Waku: Cross-Origin CSRF on RSC Server Action Dispatch

NPM: Waku: Cross-Origin CSRF on RSC Server Action Dispatch vulnerability discovered by ? in WordPress Npm waku versions = 1.0.0-beta.0...