CVE-2026-34072: Improper Authentication

CrnMaster cronmaster is a Cronjob management UI with human readable syntax, live logging and log history for cronjobs. Prior to version 2.2.0, an authentication bypass in middleware allows unauthenticated requests with an invalid session cookie to be treated as authenticated when the middleware’s...

GHSA-VJ2P-7PGW-G2WF Postiz App has a High-Severity SSRF Vulnerability via Next.js

Impact A successful SSRF attack allows an attacker to: - Bypass firewalls to scan and interact with internal network services/ports. - Access sensitive cloud metadata services e.g., AWS IMDS 169.254.169.254 to potentially leak instance credentials. - Pivot into the internal network environment...

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 AsyncLocalStorage-dependent...

HTTP Request Smuggling

Next.js is vulnerable to HTTP Request Smuggling. The vulnerability is due to improper handling of Transfer-Encoding: chunked and Content-Length headers during proxy rewrites, which allows an attacker to craft malicious DELETE/OPTIONS requests and smuggle unauthorized requests to unintended backen...

Denial Of Service (DoS)

Next.js is vulnerable to Denial Of Service DoS. The vulnerability is due to the absence of a configurable upper bound in the image optimization disk cache, which allows an attacker to generate numerous unique image variants and exhaust disk space...

Exploit for Deserialization of Untrusted Data in Facebook React

CVE-2025-55182 RSC lab intentionally vulnerable Local Doc...

VulnCheck KEV: CVE-2020-5284

Next.js versions before 9.3.2 have a directory traversal vulnerability. Attackers could craft special requests to access files in the dist directory .next. This does not affect files outside of the dist directory .next. In general, the dist directory only holds build assets unless your applicatio...

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: Concurrent Execution using Shared Resource with Improper Synchronization

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...

PT-2026-26681

Name of the Vulnerable Software and Affected Versions Effect versions prior to 3.20.0 @effect/rpc versions prior to 0.72.1 @effect/platform versions prior to 0.94.2 Description Effect is a TypeScript framework used for building TypeScript applications. A flaw exists in versions prior to 3.20.0,...

Next.js Framework 16.0.1 < 16.1.7 Multiple Vulnerabilities

The Next.js Framework on the remote host is affected by multiple vulnerabilities: - A vulnerability exists in the Next.js development server where a null origin can bypass cross-site protections on the HMR Hot Module Replacement websocket endpoint. An attacker with access to attacker-controlled...

Next.js Framework 9.5.x < 15.5.3 / 16.x < 16.1.7 HTTP Request Smuggling (GHSA-ggv3-7p47-pfv8)

The Next.js Framework on the remote host is affected by an HTTP request smuggling vulnerability: - A vulnerability exists in Next.js proxy rewrites where a crafted DELETE/OPTIONS request using Transfer-Encoding: chunked could trigger request boundary disagreement between the proxy and backend. An...

Next.js Framework 10.x / 11.x / 12.x / 13.x / 14.x / 15.x / 16.x < 16.1.7 Image Optimizer Disk Cache DoS (GHSA-3x4c-7xq6-9pq8)

The Next.js Framework on the remote host is affected by a denial of service vulnerability: - A denial of service vulnerability exists in the Next.js image optimization feature which lacks a configurable upper limit on disk cache size. An attacker can deliberately generate many unique...

CVE-2026-29057

A request smuggling flaw has been discovered in Next.js. 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...

CVE-2026-27980

An unbounded disk usage flaw has been discovered in Next.js. The default Next.js image optimization disk cache /next/image did not have a configurable upper bound, allowing unbounded cache growth. An attacker could generate many unique image-optimization variants and exhaust disk space, causing...

CVE-2026-27977

A CSRF check bypass flaw has been discovered in Next.js. In the next dev, cross-site protection for internal websocket endpoints could treat Origin: null as a bypass case even if allowedDevOrigins is configured, allowing privacy-sensitive/opaque contexts for example sandboxed documents to connect...

CVE-2026-27979

A denial of service flaw has been discovered in Next.js. A request containing the next-resume: 1 header corresponding with a PPR resume request would buffer request bodies without consistently enforcing maxPostponedStateSize in certain setups. The previous mitigation protected minimal-mode...

CVE-2026-27978

A CSRF check bypass flaw has been discovered in Next.js. The origin: null was treated as a "missing" origin during Server Action CSRF validation. As a result, requests from opaque contexts such as sandboxed iframes could bypass origin verification instead of being validated as cross-origin...

CVE-2026-29057

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...

CVE-2026-29057

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...