Vulnerability record · CVE-2026-71315 · published 5 August 2026

CVE-2026-71315: Incorrect authorization vulnerability

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.

8.2 CVSS 3.1 High EPSS 0.47% · top 62.2% CWE-178 · CWE-178CWE-863 · Incorrect authorization Deferred

8.2CVSS 3.1 base score

0.47%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

8 Sep 2026Last modified by NVD

Description

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

References

Link	Tags
https://github.com/nuxt/nuxt/commit/619963309e082190bac4a26b05f2dd155b039b81
https://github.com/nuxt/nuxt/commit/ad624a75ad2d215f43633f6b40be346a7194d34d
https://github.com/nuxt/nuxt/releases/tag/v3.21.10
https://github.com/nuxt/nuxt/releases/tag/v4.5.1
https://github.com/nuxt/nuxt/security/advisories/GHSA-hxvh-4h3w-prp9

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-12812FortiOS SSL VPN two-factor authentication bypass via username case changeFortiOS SSL VPN fails to enforce the second authentication factor (FortiToken) when a user alters the letter case of their username. Because the user…KEVEPSS 49%analysed24 Jul 2020

Source: NIST National Vulnerability Database (record CVE-2026-71315), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.