Arbitrary Code Injection Affecting @nuxt/nitro-server package, versions <3.21.10>=4.2.0 <4.5.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-71320 (opens in a new tab)How to fix?
Upgrade @nuxt/nitro-server to version 3.21.10, 4.5.1 or higher.
Overview
@nuxt/nitro-server is a Nitro server integration for Nuxt
Affected versions of this package are vulnerable to Arbitrary Code Injection via the /__nuxt_island/ endpoint when vue.runtimeCompiler is enabled and a server island component forwards attacker-controlled props into Vue's dynamic component resolution. An attacker can execute arbitrary code on the server by injecting a template key into the island props, which is then compiled and executed in the server process.
Note: This is only exploitable if vue.runtimeCompiler is set to true and the application has a server island component that forwards attacker-controlled values into a dynamic-component path, either explicitly or via attribute fallthrough.
Workaround
This vulnerability can be mitigated by ensuring vue.runtimeCompiler is set to false, avoiding forwarding island props into dynamic component resolution without sanitization, and deploying a WAF rule on /__nuxt_island/ to block any object property named template or render in the decoded island props.