CVE-2026-71318 PUBLISHED

Nuxt: Unauthorized Component Instantiation via Server Island Props

Assigner: GitHub_M
Reserved: 05.08.2026 Published: 05.08.2026 Updated: 06.08.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 4.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	nuxt
Product	nuxt
Versions	Version >= 4.0.0, < 4.5.1 is affected Version >= 3.1.0, < 3.21.10 is affected

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-48hr-524c-v5w3
https://github.com/nuxt/nuxt/releases/tag/v3.21.10
https://github.com/nuxt/nuxt/releases/tag/v4.5.1

Problem Types

CWE-20: Improper Input Validation CWE