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CVE-2026-41248: Clerk Create Route Matcher Affirmative Gate Bypasscve-2026-41248-clerk-create-route-matcher-affirmative-gate-bypass

Affirmative use of createRouteMatcher — `if ($MATCHER(req)) { await auth.protect(); }` — is the vulnerable shape for CVE-2026-41248. In @clerk/shared versions before 2.22.1 / 3.47.4 / 4.8.1 the matcher compared the raw pathname without URL normalization, so crafted requests (`/api/%61dmin/...`, `//api/admin/...`, `/api/foo/%2e%2e/admin/...`) skipped the matc

TSNext.jsCVE-2026-41248GHSA-VQX2-FGX2-5WQ9CWE-436CWE-863
by Provallyupdated 2026-06-12Apache-2.0
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