# CVE-2026-71318 — nuxt

> As of 2026-08-06, CVE-2026-71318 is a MEDIUM-severity vulnerability in nuxt, CVSS v3.1 4.8, EPSS 0.2% (11.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-71318 as of 2026-08-06; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-06

## What is 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 drive dynamic component resolution through , resolveDynamicComponent, or h(). This issue is fixed in 3.21.10 and 4.5.1.

The record classifies CVE-2026-71318 under weakness class [CWE-20](https://intel.threadlinqs.com/cwe/CWE-20). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 61 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.8 — MEDIUM (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 11.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-05, last modified 2026-08-06

## Is CVE-2026-71318 being exploited?

It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [nuxt](https://intel.threadlinqs.com/vendors/nuxt): nuxt

Affected software packages:

- `npm:nuxt` — patched in 4.5.1
- `npm:nuxt` — patched in 3.21.10

## How to fix CVE-2026-71318

Fixed versions are recorded for 2 packages: npm:nuxt 4.5.1, npm:nuxt 3.21.10. No vendor patch reference has been recorded for CVE-2026-71318 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-71318

No threat campaign in the Threadlinqs corpus currently references CVE-2026-71318, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-08-06.

**Vendor advisory and patch**

- [github.com](https://github.com/nuxt/nuxt/security/advisories/GHSA-48hr-524c-v5w3)

**Other references**

- [github.com](https://github.com/nuxt/nuxt/releases/tag/v3.21.10)
- [github.com (v4.5)](https://github.com/nuxt/nuxt/releases/tag/v4.5.1)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-71318
Full detection coverage and IOCs for threats exploiting CVE-2026-71318 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp