Categories
CVE-2026-41248

Official Clerk JavaScript SDKs: Middleware-based route protection bypass

Summary

Official Clerk JavaScript SDKs: Middleware-based route protection bypass

Original description

The description as published by the source.

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 @clerk/astro 1.5.7, 2.17.10, and 3.0.15; @clerk/nextjs 5.7.6, 6.39.2, and 7.2.1; @clerk/nuxt 1.13.28 and 2.2.2; and @clerk/shared 2.22.1, 3.47.4, anc 4.8.1

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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