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...

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...

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...

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...

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: 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...

next.js: Next.js: Information disclosure due to middleware bypass in Pages Router with i18n

A flaw was found in Next.js. Applications utilizing the Pages Router with internationalization i18n configured and middleware or proxy-based authorization are susceptible to unauthorized access. A remote attacker can exploit this by making locale-less /next/data//.json requests, which bypass the...

CVE-2026-14198

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

CVE-2026-14198

@fastify/middie versions 9.1.0 through 9.3.2 decode the encoded slash %2F inside path parameter values before matching middleware paths, while Fastify's underlying router preserves the encoding during route lookup. The two layers disagree on the canonical request path, so the middleware fails to...

CVE-2026-6556

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556 @fastify/express vulnerable to middleware bypass via non-string mount paths in prefixed plugins

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

CVE-2026-6556

The CVE concerns @fastify/express 4.0.6 and earlier, where non-string mount paths (arrays/regex) are not prefixed inside prefixed plugin scopes. This causes middleware registered with those forms to not match the actual prefixed request path, potentially bypassing path-scoped security middleware ...

CVE-2026-6556 @fastify/express vulnerable to middleware bypass via non-string mount paths in prefixed plugins

@fastify/express versions 4.0.6 and earlier only rewrite the plugin prefix for middleware mount paths when the path argument is a string. Non-string mount paths arrays of paths and regular expressions are left unprefixed inside prefixed plugin scopes, so middleware registered with those forms doe...

Next.js Middleware Authorization Bypass Scanner

This module detects self-hosted Next.js applications affected by CVE-2025-29927, an authorization bypass in the middleware layer. Next.js tags its own internal subrequests with the x-middleware-subrequest header and skips middleware when it sees it. The header is trusted without verifying it...

CVE-2026-54281 Nest: Middleware Bypass on Fastify via Trailing Slash

Nest is a framework for building scalable Node.js server-side applications. Prior to 11.1.24, an authentication bypass vulnerability exists in @nestjs/platform-fastify. When middleware is registered through NestJS's MiddlewareConsumer.forRoutes API on the Fastify adapter, an unauthenticated clien...

CVE-2026-54281

The CVE concerns NestJS with the Fastify adapter: an authentication bypass exists in @nestjs/platform-fastify before version 11.1.24 when middleware is registered via MiddlewareConsumer.forRoutes(). A trailing slash on the request URL can bypass route-specific Nest middleware on the default Fasti...

Incorrect Authorization

Overview @nestjs/platform-fastify is a Nest - modern, fast, powerful node.js web framework @platform-fastify Affected versions of this package are vulnerable to Incorrect Authorization via the MiddlewareConsumer.forRoutes API on the Fastify adapter. An attacker can gain unauthorized access to...

CVE-2026-53721

CVE-2026-53721 affects Nuxt (Vue.js framework) earlier branches: 3.11.0–3.21.6 and 4.0.0–4.4.6 are vulnerable to a route-rule middleware bypass caused by a case-sensitivity mismatch between vue-router and the routeRules matcher. The issue has been patched in Nuxt versions 3.21.7 and 4.4.7. The CV...

PT-2026-48880

Name of the Vulnerable Software and Affected Versions Nuxt versions 3.11.0 through 3.21.6 Nuxt versions 4.0.0 through 4.4.6 Description A route-rule middleware bypass exists due to a case-sensitivity mismatch between vue-router and the routeRules matcher. Recommendations Update to version 3.21.7...