Medium 4.8Published Aug 5, 2026

CVE-2026-71318Nuxt: Unauthorized Component Instantiation via Server Island Props

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects nuxt. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nuxt

Exploited in the last 30 days

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.

CVSS: 4.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-20
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 4.0.0, < 4.5.1; from 3.1.0, < 3.21.10	CNA record

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-48hr-524c-v5w3x-refsource-confirm
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.