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...

GHSA-6GPP-XCG3-4W24 Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

Impact 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. Workarounds If you cannot upgrade immediately, enforce authorization in the page's server-side data path instead...

NPM: Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale

NPM: Next.js: Middleware / Proxy bypass in App Router applications using Turbopack and single locale vulnerability discovered by ? in WordPress Npm next versions = 16.0.0, 16.2.11...

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

Impact 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. Workarounds If you cannot upgrade immediately, enforce authorization in the page's server-side data path instead...

NPM: Next.js: Denial of Service in App Router using Server Actions

NPM: Next.js: Denial of Service in App Router using Server Actions vulnerability discovered by ? in WordPress Npm next versions = 13.0.0, 15.5.21...

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

Impact 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. Workarounds No workaround exists besides upgrading. Applications using Pages Router or not using...

GHSA-M99W-X7HQ-7VFJ Next.js: Denial of Service in App Router using Server Actions

Impact 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. Workarounds No workaround exists besides upgrading. Applications using Pages Router or not 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...

PT-2026-63558

Name of the Vulnerable Software and Affected Versions Next.js versions 12.0.0 through 15.5.20 Next.js versions 16.0.0 through 16.2.10 Description Applications using App Router, Server Actions use server, or use cache endpoints may disclose these endpoints, bypassing authentication on the pages...

PT-2026-63557

Name of the Vulnerable Software and Affected Versions Next.js versions 16.0.0 through 16.2.10 Description Applications using App Router built with Turbopack and a single entry in config.i18n.locales are susceptible to authentication bypass. Specifically, crafted requests can circumvent middleware...

PT-2026-63556

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 Crafted requests targeting applications using App Router with at least one Server Action can cause excessive CPU usage, which blocks the processing of...

next.js: Next.js: Unauthorized access to protected content via middleware bypass

A flaw was found in Next.js. App Router applications that use middleware or proxy-based authorization checks are vulnerable to unauthorized access. A remote attacker can exploit this by crafting specific .rsc and segment-prefetch URLs, which bypass the intended middleware rules. This allows acces...

Linux Distros Unpatched Vulnerability : CVE-2026-44581

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Next.js is a React framework for building full-stack web applications. From 13.4.0 to before 15.5.16 and 16.2.5, App Router applications that rely on CSP nonces...

CVE-2026-44575

A flaw was found in Next.js. App Router applications that use middleware or proxy-based authorization checks are vulnerable to unauthorized access. A remote attacker can exploit this by crafting specific .rsc and segment-prefetch URLs, which bypass the intended middleware rules. This allows acces...

Exploit for Deserialization of Untrusted Data in Facebook React

CVE-2025-55182 React2Shell Analysis Report Sections require...

react2shell-poc

日本語 !CAUTION For Authorized Security Re...

Next.js Framework 13.4.x < 15.5.16 / 16.x < 16.2.5 Stored XSS

The Next.js Framework on the remote host is affected by a stored cross-site scripting vulnerability: - App Router applications that rely on CSP nonces can be vulnerable to stored cross-site scripting when deployed behind shared caches. In affected versions, malformed nonce values derived from...

Next.js Framework 15.2.x < 15.5.16 / 16.x < 16.2.5 Authorization Bypass

The Next.js Framework on the remote host is affected by an authorization bypass vulnerability: - App Router applications that rely on middleware or proxy-based checks for authorization can allow unauthorized access through transport-specific route variants used for segment prefetching. In affecte...

CVE-2026-44581

Next.js is a React framework for building full-stack web applications. From 13.4.0 to before 15.5.16 and 16.2.5, App Router applications that rely on CSP nonces can be vulnerable to stored cross-site scripting when deployed behind shared caches. In affected versions, malformed nonce values derive...

CVE-2026-44575

Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.16 and 16.2.5, App Router applications that rely on middleware or proxy-based checks for authorization can allow unauthorized access through transport-specific route variants used for segment...