High 8.2Published Aug 5, 2026

CVE-2026-71315Nuxt route rules silently dropped for mixed-case paths, bypassing appMiddleware auth gates (incomplete fix for CVE-2026-53721)

Updated under an hour ago (2026-10-19 08:30 UTC)

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Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-178, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nuxt nuxt nuxt:nuxt (from the name)	from 4.4.7, < 4.5.1; from 3.21.7, < 3.21.10	CNA record

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-hxvh-4h3w-prp9x-refsource-confirm
https://github.com/nuxt/nuxt/commit/619963309e082190bac4a26b05f2dd155b039b81x-refsource-misc
https://github.com/nuxt/nuxt/commit/ad624a75ad2d215f43633f6b40be346a7194d34dx-refsource-misc
https://github.com/nuxt/nuxt/releases/tag/v3.21.10x-refsource-misc
https://github.com/nuxt/nuxt/releases/tag/v4.5.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.