CVE-2026-41248
Last modified
CVE-2026-41248 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-41248?
How severe is CVE-2026-41248?
How do I fix CVE-2026-41248?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-41242protobufjs compiles protobuf definitions into JavaScript (JS…9.8
- CVE-2026-41243OpenLearn is open-source educational forum software. Prior t…5.4
- CVE-2026-41244Mojic is a CLI tool to transform readable C code into an unr…4.7
- CVE-2026-41245Junrar is an open source java RAR archive library. Prior to …7.5
- CVE-2026-41246Contour is a Kubernetes ingress controller using Envoy proxy…8.1
- CVE-2026-41247elFinder is an open-source file manager for web, written in …9.8
- CVE-2026-41249CoreShop is a Pimcore enhanced eCommerce solution. In versio…8.2
- CVE-2026-4125The WPMK Block plugin for WordPress is vulnerable to Stored …6.4
- CVE-2026-41250Taiga is a project management platform for startups and agil…5.7
- CVE-2026-41252xrdp is an open source RDP server. Versions 0.10.6 and prior…9.8
- CVE-2026-41253In iTerm2 through 3.6.9, displaying a .txt file can cause co…7.8
- CVE-2026-41254Little CMS (lcms2) through 2.18 has an integer overflow in C…7.5
Are you affected by CVE-2026-41248?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST