CVE-2026-53721

Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher

State: Published
Severity: 8.8 High
Published: Jun 12, 2026
Updated: Jun 13, 2026
Reserved: Jun 10, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.8 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-178 Improper Handling of Case Sensitivity
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
nuxtnuxt	>= 3.11.0, < 3.21.7Affected >= 4.0.0, < 4.4.7Affected

References

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