CVE-2026-71318: Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an attacker can supply a top-level `as` prop to the /__nuxt_island/ endpoint and dr

mediumCVSS 4.8CVE-2026-71318

Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an attacker can supply a top-level as prop to the /__nuxt_island/ endpoint and drive dynamic component resolution through <component :is>, resolveDynamicComponent, or h(). This issue is fixed in 3.21.10 and 4.5.1.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 4.8
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-2026-71318

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-2026-713180.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-71318	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

mediumGHSA-48hr-524c-v5w3: Nuxt: Unauthorized Component Instantiation via Server Island Propsghsa

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
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
highGHSA-9473-5f9j-94wq: Nuxt: Server-Side Remote Code Execution via Runtime Template Injection in Nuxt Server Isl…ghsa · 2026-08-05