Signal is active with 3 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD 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
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
RISING
| Date | Total | Labels |
|---|
| 2026-04-24 | 1 | Disclosure1 |
| 2026-04-25 | 1 | Disclosure1 |
| 2026-04-27 | 1 | Patch1 |
| 2026-04-30 | 1 | Disclosure1 |
| 2026-05-01 | 1 | General1 |
| 2026-05-21 | 3 | Disclosure3 |
Clerk Auth Bypass: Middleware Gating Fails Across Next.js, Nuxt, Astro (CVE-2026-41248) Clerk published security advisories on April 24, 2026, disclosing CVE-2026-41248, a critical vulnerability in its official JavaScript authentication library.
Post summary
Clerk’s advisory publicly discloses CVE-2026-41248, a critical flaw in its JavaScript authentication library, without providing PoC, exploit, or patch details.
Clerk published security advisories on April 24, 2026, disclosing CVE-2026-41248, a critical vulnerability in its official JavaScript authentication library. The flaw affects the routing middleware used by thousands of developers building modern web applications with…
Post summary
Clerk announced a critical vulnerability (CVE-2026-41248) in its JavaScript authentication library affecting routing middleware, but no further detail on exploits, patches, or technical specifics was provided.
24, 2026, — Clerk Auth Bypass: Middleware Gating Fails Across Next.js, Nuxt, Astro (CVE-2026-41248). Clerk published security advisories on April 24, 2026, disclosing CVE-2026-41248, a critical vulnerability in its official JavaScript authentication library.
Post summary
Clerk announced CVE‑2026‑41248 as a critical flaw in its JavaScript authentication library, without providing PoC, exploit code, or remedial guidance.
CVE-2026-41248: Clerk SDK Auth Bypass Exposes Millions of Web Apps https://thecybrdef.com/cve-2026-41248-clerk-sdk-auth-bypass/
Post summary
The provided text only names the CVE and a headline, offering no additional context or technical information.
CVE-2026-41248: Clerk SDK Auth Bypass Exposes Millions of Web Apps https://thecybrdef.com/cve-2026-41248-clerk-sdk-auth-bypass/
Post summary
The headline announces a disclosure of CVE‑2026‑41248, detailing an authentication bypass in the Clerk SDK that could impact millions of web apps, but no exploit, patch, or active exploitation information is given.
Warning: Critical function bypass vulnerability in #Clerk authentication. CVE-2026-41248 CVSS: 9.1. This can lead to functions being bypassed by certain crafted requests. #Patch #Patch #Patch
Post summary
A high‑severity function bypass vulnerability (CVE‑2026‑41248) in Clerk authentication is announced with a CVSS score of 9.1, and the post urges users to apply a patch, though no PoC or exploitation evidence is provided.
CVE-2026-41248 Middleware Bypass in Clerk JavaScript Authentication Libraries via createRouteMatcher https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-41248
Post summary
The post announces CVE-2026-41248 as a middleware bypass in Clerk JavaScript authentication libraries through the createRouteMatcher function, but it offers no PoC, exploit code, active exploitation info, patches, or debunking details.
CVE-2026-41248 Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by… https://www.cve.org/CVERecord?id=CVE-2026-41248
Post summary
The text announces CVE‑2026‑41248 and notes a bypass of Clerk’s createRouteMatcher in several frameworks, but does not provide a PoC, exploit, patch, or evidence of active exploitation.