critical9.1
CVE-2026-41248
Clerk JavaScript is the official JavaScript repository for Clerk authentication.
Impact
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
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @clerk/nextjs | >= 5.0.0, < 5.7.6 | 5.7.6 |
| npm | @clerk/nuxt | >= 1.1.0, < 1.13.28 | 1.13.28 |
| npm | @clerk/astro | >= 0.0.1, < 1.5.7 | 1.5.7 |
| npm | @clerk/shared | >= 2.20.17, < 2.22.1 | 2.22.1 |