Auth bypass in Nuxt
CVE-2026-53721
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 match…
EPSS: 0.003 (21.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Nuxt — versions >= 3.11.0, < 3.21.7, >= 4.0.0, < 4.4.7
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-53721?
- CVE-2026-53721 is a high-severity vulnerability in Nuxt, classified under Improper Handling of Case Sensitivity. CVSS score: 8.2/10. Published 2026-06-12.
- How severe is CVE-2026-53721?
- High severity. CVSS v3 base score is 8.2 out of 10.