Nextjs <2.4.1 - Local File Inclusion

ZEIT Next.js before 2.4.1 is susceptible to local file inclusion via the /next and /static request namespace, allowing attackers to obtain sensitive information. id: CVE-2017-16877 info: name: Nextjs 2.4.1 - Local File Inclusion author: pikpikcu severity: high description: ZEIT Next.js before 2.4...

CVE-2026-64647

A flaw was found in Next.js. This vulnerability allows a remote attacker to potentially access confidential data. When a server-side fetch processes a request with a body using a non-UTF-8 character set, it may incorrectly return a cached response body from a different request to the same URL but...

Next.js Middleware Bypass

Next.js contains a critical middleware bypass vulnerability affecting versions 11.1.4 through 15.2.2. The vulnerability allows attackers to bypass middleware security controls by sending a specially crafted 'x-middleware-subrequest' header, which can lead to authorization bypass and other securit...

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

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-2026-64641 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-2026-64645

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, a rewrites or redirects rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the...

React Server Components - Remote Code Execution

React Server Components 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack contain a remote code execution caused by unsafe deserialization of payloads from HTTP requests to Server Function endpoints, letting...

Server-side Request Forgery (SSRF)

Overview next is a react framework. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through createForwardedActionResponse and createRedirectRenderResult in packages/next/src/server/app-render/action-handler.ts. An attacker can make the server send a forwarded...

GHSA-4633-3J49-MH5Q Next.js: Cache confusion of response bodies for requests with bodies containing invalid UTF-8 byte sequences

Impact A server-side fetch with a request body may return a cached response body from a different request to the same URL but different body. Confidential data in the POST's response body would then leak to unauthorized requests. Though the request itself will not be deduped. This is only an issu...

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...

Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname

Impact A rewrites or redirects rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the...

GHSA-P9J2-GV94-2WF4 Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname

Impact A rewrites or redirects rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the...

GHSA-Q8WF-6R8G-63CH Next.js: Denial of Service in the Image Optimization API using SVGs

Impact When self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured not enabled by default. If those images contain malicious content, they can cause CPU exhaustion in /next/image endpoints. - If you are using...

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...

CVE-2026-62327

9Router through version 0.4.41 contains an unauthenticated information disclosure vulnerability that allows remote attackers to retrieve plaintext API keys for all connected AI provider accounts by sending a single unauthenticated request to the /api/usage/stats endpoint. Attackers can exploit th...

CVE-2026-62327 9Router 0.4.41 - Unauthenticated API Key Exposure via /api/usage/stats

9Router through version 0.4.41 contains an unauthenticated information disclosure vulnerability that allows remote attackers to retrieve plaintext API keys for all connected AI provider accounts by sending a single unauthenticated request to the /api/usage/stats endpoint. Attackers can exploit th...

CVE-2026-59801

CVE-2026-59801 affects 9Router up to version 0.4.41 and is caused by missing authentication middleware in Next.js API routes under src/app/api/providers/*. It allows unauthenticated remote interaction with provider management endpoints, enabling enumeration, creation, modification, or deletion of...

next.js: Next.js: Denial of Service via crafted POST requests to server actions

A flaw was found in Next.js. Applications utilizing Partial Prerendering via the Cache Components feature are susceptible to connection exhaustion. A remote attacker can send crafted POST requests to a server action, triggering a request-body handling deadlock. This leaves connections open,...