CVE-2026-41248

The CVE-2026-41248 affects Clerk JavaScript repositories: createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by crafted requests, bypassing middleware gating and reaching downstream handlers. Affected fixes are: @clerk/astro 1.5.7, 2.17.10, 3.0.15; @clerk/nextjs 5....

EUVD-2026-25632

Clerk JavaScript is the official JavaScript repository for Clerk authentication. 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. This vulnerability is fixed in...

CVE-2026-41248: Interpretation Conflict

Clerk JavaScript is the official JavaScript repository for Clerk authentication. 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. This vulnerability is fixed in...

Incorrect Authorization

Overview @clerk/nuxt is a Clerk SDK for Nuxt 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 tha...

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...