Incorrect Authorization

Overview @auth0/nextjs-auth0 is a Next.js SDK for signing in with Auth0 Affected versions of this package are vulnerable to Incorrect Authorization in the proxy cache fetcher. An attacker can gain unauthorized access to sensitive information or perform actions with insufficient authorization by...

CVE-2026-40155

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if...

CVE-2026-40155 Auth0 Next.js SDK has Improper Proxy Cache Lookup

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if...

CVE-2026-40155 Auth0 Next.js SDK has Improper Proxy Cache Lookup

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if...

CVE-2026-40155

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if...

@smg-automotive/auth (>=8.2.3, <=9.0.2-support-next-16.2.1) potentially affected by CVE-2026-40155 via @auth0/nextjs-auth0 (>=4.12.1, <=4.17.1)

@auth0/nextjs-auth0 NPM version =4.12.1, =8.2.3, =9.0.2-support-next-16.2.1 Source cves: CVE-2026-40155 Source advisory: MEND:CVE-2026-40155...

CVE-2026-40155 Auth0 Next.js SDK has Improper Proxy Cache Lookup

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In versions 4.12.0 through 4.17.1, simultaneous requests that trigger a nonce retry may cause the proxy cache fetcher to perform improper lookups for the token request results. Users are affected if...

CVE-2026-40155

The CVE concerns the Auth0 Next.js SDK. Affected versions: 4.12.0–4.17.1. Issue: when multiple simultaneous requests trigger a nonce retry, the proxy cache fetcher may perform improper lookups for token request results. Impact: affects projects using both the vulnerable SDK versions and the proxy...

NextJS-Auth0 security vulnerability

nextjs-auth0 is an open-source Next.js SDK developed by Auth0, used for authentication with Auth0. Versions 4.12.0 to 4.17.1 of nextjs-auth0 contain security vulnerabilities. These vulnerabilities stem from requests that trigger random number retries, which may lead to improper handling of token...

@bentwnghk/chat (>=1.91.2, <=1.91.6), @lobehub/chat (>=1.49.5, <=1.49.12) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=6.3.1, <=6.28.1)

@clerk/nextjs NPM version =6.3.1, =1.91.2, =1.49.5, =0.0.2, =0.17.0-alpha.9, =0.17.3-centauri.0 Source cves: CVE-2026-41248 Source advisory: GHSA-VQX2-FGX2-5WQ9...

@bentwnghk/chat (>=1.45.5, <=1.45.6), @clerk/elements (0.0.2-snapshot.vc65ad98) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=5.0.1-snapshot.vc65ad98, <=5.7.5)

@clerk/nextjs NPM version =5.0.1-snapshot.vc65ad98, =1.45.5, =1.2.8, =1.2.9 - @spike-npm-land/code 0.9.55 Source cves: CVE-2026-41248 Source advisory: GHSA-VQX2-FGX2-5WQ9...

Official Clerk JavaScript SDKs: Middleware-based route protection bypass

Summary createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. Sessions are not compromised and no existing user can be impersonated - the bypass only affects the...

Incorrect Authorization

Overview @clerk/nextjs is a Clerk SDK for NextJS Affected versions of this package are vulnerable to Incorrect Authorization via the createPathMatcher function in @clerk/shared used by downstream createRouteMatcher. An attacker can gain unauthorized access to protected routes by crafting requests...

@bentwnghk/chat (>=1.45.5, <=1.45.6), @clerk/elements (0.0.2-snapshot.vc65ad98) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=5.0.1-snapshot.vc65ad98, <=5.7.5)

@clerk/nextjs NPM version =5.0.1-snapshot.vc65ad98, =1.45.5, =1.2.8, =1.2.9 - @spike-npm-land/code 0.9.55 Source cves: CVE-2026-41248 Source advisory: SNYK:JS-CLERKNEXTJS-16098250...

@bentwnghk/chat (>=1.91.2, <=1.91.6), @lobehub/chat (>=1.49.5, <=1.49.12) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=6.3.1, <=6.28.1)

@clerk/nextjs NPM version =6.3.1, =1.91.2, =1.49.5, =0.0.2, =0.17.0-alpha.9, =0.17.3-centauri.0 Source cves: CVE-2026-41248 Source advisory: SNYK:JS-CLERKNEXTJS-16098250...

@bentwnghk/chat (>=1.91.2, <=1.91.6), @lobehub/chat (>=1.49.5, <=1.49.12) +2 more potentially affected by CVE-2026-41248 via @clerk/nextjs (>=6.3.1, <=6.28.1)

@clerk/nextjs NPM version =6.3.1, =1.91.2, =1.49.5, =0.0.2, =0.17.0-alpha.9, =0.17.3-centauri.0 Source cves: CVE-2026-41248 Source advisory: OSV:GHSA-VQX2-FGX2-5WQ9...

PT-2026-35323

Summary createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. Sessions are not compromised and no existing user can be impersonated - the bypass only affects the...

UAT-10608: Inside a large-scale automated credential harvesting operation targeting web applications

Cisco Talos is disclosing a large-scale automated credential harvesting campaign carried out by a threat cluster we are tracking as "UAT-10608." Post-compromise, UAT-10608 leverages automated scripts for extracting and exfiltrating credentials from a variety of applications, that are then posted ...

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...

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...