# CVE-2026-46342

## Summary

- **CVE ID:** CVE-2026-46342
- **Severity:** LOW
- **CVSS Score:** 2.3 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N)
- **CWE:** CWE-79, CWE-349, CWE-444
- **Published:** Jun 12, 2026
- **Last Modified:** Jun 12, 2026

## Description

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_island/* endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash (<Name>_<hashId>.json) was actually issued for those inputs by <NuxtIsland>. The hash is computed and embedded client-side but never validated server-side, so the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.

## Affected Products

- nuxt — nuxt (>= 3.1.0, < 3.21.6)
- nuxt — nuxt (>= 4.0.0-alpha.1, < 4.4.6)

## References

- [CNA](https://github.com/nuxt/nuxt/security/advisories/GHSA-g8wj-3cr3-6w7v)
- [CNA](https://github.com/nuxt/nuxt/pull/35077)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.09%
- **EPSS Percentile:** 0.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._