CVE-2026-32887

The Connected document details a concurrency vulnerability in the Effect ecosystem where AsyncLocalStorage (ALS) context is not properly propagated across fibers in a web handler under concurrent load. Root cause: a scheduler drains multiple fiber continuations in a single drain cycle, causing AL...

CVE-2026-32887 Effect Bug: `AsyncLocalStorage` context lost/contaminated inside Effect fibers under concurrent load with RPC

Effect is a TypeScript framework that consists of several packages that work together to help build TypeScript applications. Prior to version 3.20.0, when using RpcServer.toWebHandler or HttpApp.toWebHandlerRuntime inside a Next.js App Router route handler, any Node.js AsyncLocalStorage-dependent...

CVE-2026-32887

Effect is a TypeScript framework that consists of several packages that work together to help build TypeScript applications. Prior to version 3.20.0, when using "RpcServer.toWebHandler" or "HttpApp.toWebHandlerRuntime" inside a Next.js App Router route handler, any Node.js...

CVE-2026-32887 Effect Bug: `AsyncLocalStorage` context lost/contaminated inside Effect fibers under concurrent load with RPC

Effect is a TypeScript framework that consists of several packages that work together to help build TypeScript applications. Prior to version 3.20.0, when using RpcServer.toWebHandler or HttpApp.toWebHandlerRuntime inside a Next.js App Router route handler, any Node.js AsyncLocalStorage-dependent...

Exploit for Deserialization of Untrusted Data in Facebook React

CVE-2025-55182 – React2Shell React Server Components / Next...

CVE-2026-29057 Next.js: HTTP request smuggling in rewrites

Next.js is a React framework for building full-stack web applications. Starting in version 9.5.0 and prior to versions 15.5.13 and 16.1.7, when Next.js rewrites proxy traffic to an external backend, a crafted DELETE/OPTIONS request using Transfer-Encoding: chunked could trigger request boundary...

CVE-2026-29057 Next.js: HTTP request smuggling in rewrites

Next.js is a React framework for building full-stack web applications. Starting in version 9.5.0 and prior to versions 15.5.13 and 16.1.7, when Next.js rewrites proxy traffic to an external backend, a crafted DELETE/OPTIONS request using Transfer-Encoding: chunked could trigger request boundary...

CVE-2026-27979 Next.js: Unbounded postponed resume buffering can lead to DoS

Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, a request containing the next-resume: 1 header corresponding with a PPR resume request would buffer request bodies without consistently enforcing maxPostponedStateSize in...

CVE-2026-27979

Next.js CVE-2026-27979 affects Next.js 16.0.1 through 16.1.6 in non-minimal deployments with Partial Prerendering enabled. A request containing the next-resume: 1 header can cause unbounded postponed-body buffering, consuming memory and enabling DoS. The issue is fixed in 16.1.7 by enforcing size...

Next.js resource management error vulnerabilities

Next.js is a React framework open source by Vercel. Versions of Next.js from 10.0.0 to 16.1.7 had a resource management vulnerability. This vulnerability stemmed from the default image optimization feature, which had no configuration limit on disk caching, potentially leading to exhaustion of dis...

Linux Distros Unpatched Vulnerability : CVE-2026-27978

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. Starting in version 16.0.1 and prior to version 16.1.7, origin: null was treated as a...

CVE-2026-27978

Next.js (React framework) vulnerability CVE-2026-27978: in versions 16.0.1 up to 16.1.7, origin: null was treated as missing during Server Action CSRF validation, allowing requests from opaque contexts (e.g., sandboxed iframes) to bypass origin verification and potentially trigger state-changing ...

CVE-2026-27977

Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, in next dev, cross-site protection for internal websocket endpoints could treat Origin: null as a bypass case even if allowedDevOrigins is configured, allowing...

GHSA-GGV3-7P47-PFV8 Next.js: HTTP request smuggling in rewrites

Summary When Next.js rewrites proxy traffic to an external backend, a crafted DELETE/OPTIONS request using Transfer-Encoding: chunked could trigger request boundary disagreement between the proxy and backend. This could allow request smuggling through rewritten routes. Impact An attacker could...

Next.js: HTTP request smuggling in rewrites

Summary When Next.js rewrites proxy traffic to an external backend, a crafted DELETE/OPTIONS request using Transfer-Encoding: chunked could trigger request boundary disagreement between the proxy and backend. This could allow request smuggling through rewritten routes. Impact An attacker could...

Exploit for Deserialization of Untrusted Data in Facebook React

CVE Exploitation Arsenal Professional penetration testing too...

@cloudcommerce/storefront (>=0.10.0, <=0.11.0), @gspenst/next (>=0.0.1, <=0.1.2) +6 more potentially affected by CVE-2026-29066 via @tinacms/cli (>=0.60.28, <=1.12.6)

@tinacms/cli NPM version =0.60.28, =0.10.0, =0.0.1, =0.1.0, =0.0.2, =0.0.3, =0.0.1, =0.1.3 - next-tina-github-starter 0.1.0 - ramidus 1.2.1 Source cves: CVE-2026-29066 Source advisory: MEND:CVE-2026-29066...

CVE-2026-30942

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Prior to 1.7.3, an authenticated path traversal vulnerability in /api/avatars/filename allows any logged-in user to read arbitrary files from within the application container. The filename URL...

CVE-2026-3125

A Server-Side Request Forgery SSRF vulnerability was identified in the @opennextjs/cloudflare package, resulting from a path normalization bypass in the /cdn-cgi/image/ handler.The @opennextjs/cloudflare worker template includes a /cdn-cgi/image/ handler intended for development use only. In...

CVE-2026-3125

CVE-2026-3125 affects the @opennextjs/cloudflare package and its /cdn-cgi/image/ handler. A path normalization bypass (using a backslash in the path, e.g., /cdn-cgi\image/…) can bypass Cloudflare edge interception, allowing requests to reach the Worker and trigger an unvalidated fetch of arbitrar...