CVE-2026-71315
HIGHNuxt 3.21.7-3.21.9 and 4.4.7-4.5.0 - appMiddleware Auth Bypass
Title source: manualDescription
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.
References (5)
Core 5
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/nuxt/nuxt/security/advisories/GHSA-hxvh-4h3w-prp9
X_Refsource_Misc x_refsource_misc
https://github.com/nuxt/nuxt/commit/619963309e082190bac4a26b05f2dd155b039b81
X_Refsource_Misc x_refsource_misc
https://github.com/nuxt/nuxt/commit/ad624a75ad2d215f43633f6b40be346a7194d34d
X_Refsource_Misc x_refsource_misc
https://github.com/nuxt/nuxt/releases/tag/v3.21.10
X_Refsource_Misc x_refsource_misc
https://github.com/nuxt/nuxt/releases/tag/v4.5.1
Scores
CVSS v3
8.2
EPSS
0.0027
EPSS Percentile
18.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-178
CWE-863
Status
published
Products (4)
npm/nuxt
3.21.7 - 3.21.10npm
npm/nuxt
4.4.7 - 4.5.1npm
nuxt/nuxt
>= 3.21.7, < 3.21.10
nuxt/nuxt
>= 4.4.7, < 4.5.1
Published
Aug 05, 2026
Tracked Since
Aug 06, 2026