CVE-2026-71315: 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.optio

highCVSS 8.2CVE-2026-71315

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 8.2
Published: 2026-08-05
Last updated: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-71315

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-713150.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-71315	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

highGHSA-hxvh-4h3w-prp9: Nuxt route rules silently dropped for mixed-case paths, bypassing appMiddleware auth gate…ghsa

Recent advisories for Nuxt is an

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-71321: Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.…nvd · 2026-08-05
highCVE-2026-71320: Nuxt is an open-source web development framework for Vue.js. From 3.4.0 until 3.21.10 and 4.5.…nvd · 2026-08-05
criticalCVE-2026-71319: Nuxt is an open-source web development framework for Vue.js. Prior to 3.3.1, Nuxt DevTools (de…nvd · 2026-08-05
mediumCVE-2026-71318: Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.…nvd · 2026-08-05
highCVE-2026-71316: Nuxt is an open-source web development framework for Vue.js. From 4.4.0 until 4.5.1, runtime c…nvd · 2026-08-05
highGHSA-9pgf-384g-p7mv: Nuxt: Unauthenticated CPU exhaustion parsing and hashing the Nuxt island endpoint body be…ghsa · 2026-08-05