CVE-2026-71315 PUBLISHED

Nuxt route rules silently dropped for mixed-case paths, bypassing appMiddleware auth gates (incomplete fix for CVE-2026-53721)

Assigner: GitHub_M
Reserved: 05.08.2026 Published: 05.08.2026 Updated: 06.08.2026

Nuxt is an open-source web development framework for Vue.js. From 3.21.7 until 3.21.10 and 4.5.1, mixed-case routeRules keys can fail to match case-folded lookups when router.options.sensitive is false and drop appMiddleware authorization gates. This is caused by an incomplete fix for CVE-2026-53721. This issue is fixed in 3.21.10 and 4.5.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS Score: 8.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	nuxt
Product	nuxt
Versions	Version >= 4.4.7, < 4.5.1 is affected Version >= 3.21.7, < 3.21.10 is affected

References

Problem Types

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