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...

CVE-2026-44575 Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes

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...

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...

CVE-2026-44575

Summary: CVE-2026-44575 affects Next.js App Router: middleware/proxy authorization checks can be bypassed via transport-specific route variants used for segment prefetching. Specifically, in versions 15.2.0–before 15.5.16 and 16.2.5, specially crafted .rsc and segment-prefetch URLs can resolve to...

CVE-2026-44575 Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes

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...

CVE-2026-44575: Authentication Bypass Using an Alternate Path or Channel

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...

Next.js security vulnerabilities

Next.js is a React framework open source by Vercel. Versions of Next.js from 15.2.0 to 15.5.16, as well as versions before 16.2.5, have security vulnerabilities. These vulnerabilities arise when the App Router relies on middleware or proxy authorization checks. Specific route variants are used fo...

Next.js RSC / HTML cache poisoning (GHSA-wfc6-r584-vfw7)

Three GETs on the same URL: baseline, then with loose RSC + Next-Router-Prefetch, then clean again. Pre-16.2.5 stacks may mis-classify Flight as text/html so CDNs cache RSC bytes under an HTML content-type key. !/usr/bin/env python3 -- coding: utf-8 -- from kittysploit import from...

Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes - Incomplete Fix Follow-Up

Impact It was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. Refer to CVE-2026-44575 for further details. References - CVE CVE-2026-44575...

GHSA-26HH-7CQF-HHC6 Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes - Incomplete Fix Follow-Up

Impact It was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. Refer to CVE-2026-44575 for further details. References - CVE CVE-2026-44575...

NPM: Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes - Incomplete Fix Follow-Up

Incomplete Fix Follow-Up vulnerability discovered by ? in WordPress Npm next versions = 15.2.0, 15.5.18...

Authentication Bypass Using an Alternate Path or Channel

Overview next is a react framework. Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel in the handling of segment-prefetch routes. An attacker can gain unauthorized access to protected content by crafting .rsc and segment-prefetch URLs tha...

Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes

Impact 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 affected configurations, specially crafted .rsc and segment-prefetch URLs can resolve to the same...

GHSA-267C-6GRR-H53F Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes

Impact 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 affected configurations, specially crafted .rsc and segment-prefetch URLs can resolve to the same...

NPM: Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes

NPM: Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes vulnerability discovered by ? in WordPress Npm next versions = 15.2.0, 15.5.16...

SUSE CVE-2026-44029

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 introduced in 2.24.7;...

EUVD-2026-27166

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 introduced in 2.24.7;...

DEBIAN-CVE-2026-44029

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 introduced in 2.24.7;...

CVE-2026-44029

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 introduced in 2.24.7;...

CVE-2026-44029

An issue was discovered in Nix before 2.34.7. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal. The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 introduced in 2.24.7;...