CVE-2026-41248CRITICAL 9.1EPSS p23.9%
CVE-2026-41248CVE-2026-41248
Description
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
Scoring
| CVSS 3.1 | 9.1 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| EPSS | 0.32% probability of exploitation · percentile 23.9% · 2026-06-19T12:03:05Z |
| Published | 2026-04-24 |
| Last modified | 2026-04-29 |
Underlying weaknesses· 2
References
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Interpretation Conflictcwe-436 | 0% | live |
| Weakness | Incorrect Authorizationcwe-863 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.