Vulnerability Description
Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nuxt | Nuxt | >= 3.11.0, < 3.21.7 |
Related Weaknesses (CWE)
References
- https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bbPatch
- https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11ePatch
- https://github.com/nuxt/nuxt/security/advisories/GHSA-mm7m-92g8-7m47MitigationPatchVendor Advisory
FAQ
What is CVE-2026-53721?
CVE-2026-53721 is a vulnerability with a CVSS score of 8.2 (HIGH). Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch betw...
How severe is CVE-2026-53721?
CVE-2026-53721 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53721?
Check the references section above for vendor advisories and patch information. Affected products include: Nuxt Nuxt.