# Nuxt: Server-Side Remote Code Execution via Runtime Template Injection in Nuxt Server Island Props

Advisory record · `GHSA-9473-5f9j-94wq`

- **Identifiers:** `GHSA-9473-5f9j-94wq` · `CVE-2026-71320`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-74](https://cwe.mitre.org/data/definitions/74.html) · [CWE-94](https://cwe.mitre.org/data/definitions/94.html)
- **Tags:** [Other injection](https://agentprime.io/advisories/tag/injection.md) · [Code injection](https://agentprime.io/advisories/tag/code-injection.md)
- **Published:** 5 Aug 2026
- **Updated:** 5 Aug 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 5 Aug 2026, 21:29 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `nuxt` (npm): affected `>=4.0.0, <4.5.1 || >=3.4.0, <3.21.10`; fixed in `4.5.1`, `3.21.10`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0071, the 54th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 5 Aug 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-9473-5f9j-94wq](https://github.com/advisories/GHSA-9473-5f9j-94wq)
- [OSV: GHSA-9473-5f9j-94wq](https://osv.dev/vulnerability/GHSA-9473-5f9j-94wq)
- <https://github.com/nuxt/nuxt/security/advisories/GHSA-9473-5f9j-94wq>
- <https://github.com/nuxt/nuxt/commit/5b60017f7f1d5e9384cadf1d6c580b99d583c418>
- <https://github.com/nuxt/nuxt/commit/ee6c846338f4eb75801815dda86df1f494725859>
- <https://github.com/nuxt/nuxt>
- <https://github.com/nuxt/nuxt/releases/tag/v3.21.10>
- <https://github.com/nuxt/nuxt/releases/tag/v4.5.1>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-9473-5f9j-94wq>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-9473-5f9j-94wq/>. Everything for agents: <https://agentprime.io/llms.txt>.