ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-71320

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

Published Jul 27, 2026 · catalog updated Aug 27, 2026 · Server-Side Remote Code Execution

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-71320. EPSS is 0.71%. Act only if a listed version of Server-Side Remote Code Execution is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Server-Side Remote Code Execution).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.71%
Remediation
Version ranges on file
Affected products
npm nuxt

## Impact Nuxt server islands accept props via the endpoint. When the application has a server island component that forwards props into Vue's dynamic component resolution ( , , or ), an attacker can inject a key into the island props to achieve server-side remote code execution in the Nitro process. Vue's runtime template compiler compiles and executes the attacker-controlled in the server process. The same primitive also works on the client side if is explicitly enabled. Some component libraries expose a polymorphic / prop that forwards its value into ; (via ) is a widely used example. An application is affected if such a component receives the attacker-controlled value. Note this does not require the island author to explicitly forward a prop: island props that the island component does not declare fall through as attributes onto its single root element (standard Vue attribute inheritance), so an island whose root is a polymorphic component receives the attacker's value implicitly. These libraries are not themselves vulnerable; they are noted only because they commonly provide the dynamic-component sink. ## Common configurations that satisfy the preconditions The library below is not itself vulnerable; it is noted because it commonly provides the dynamic-component sink an application might inadvertently expose. - ** ** (via its underlying ** ** primitives) exposes a polymorphic / prop that is forwarded into Vue's dynamic-component resolution. Installing does not by itself register any component as a server island. Exploitation requires the application to define an island component (a file) whose rendered output puts the attacker-controlled value on such a component's / prop; the attacker-controlled is then compiled and executed. Because undeclared island props fall through as attributes to the single root, this can happen without any explicit binding: an island whose root is a / component is enough. An example vulnerable island (the value falls through to , no ex

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • npm nuxt>= 3.4.0, < 3.21.10
  • npm nuxt>= 4.0.0, < 4.5.1

How to fix CVE-2026-71320

  • Upgrade

    CVE-2026-71320 lists a fix boundary at 3.21.10. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 3.21.10

  • Advisory

    Open the inventory_github record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-71320. EPSS is 0.71%. Act only if a listed version of Server-Side Remote Code Execution is installed.

Which versions are affected?

Compare what you have installed with >= 3.4.0, < 3.21.10, >= 4.0.0, < 4.5.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-74: Injection; CWE-94: Code Injection. EPSS 0.71%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Nuxt security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 27, 2026 · Maintainer security tabs

    Detected

    ## Impact Nuxt server islands accept props via the endpoint. When the application has a server island component that forwards props into Vue's dynamic component resolution ( , , or ), an attacker can inject a key into the island props to achieve server-side remote code execution in the Nitro process. Vue's runtime template compiler compiles and executes the attacker-controlled in the server proces

  2. Aug 27, 2026 · Maintainer security tabs

    Updated

    ## Impact Nuxt server islands accept props via the endpoint. When the application has a server island component that forwards props into Vue's dynamic component resolution ( , , or ), an attacker can inject a key into the island props to achieve server-side remote code execution in the Nitro process. Vue's runtime template compiler compiles and executes the attacker-controlled in the server proces

Sources

  • Maintainer security tabsVendor advisoryGHSA-9473-5f9j-94wq

    ## Impact Nuxt server islands accept props via the endpoint. When the application has a server island component that forwards props into Vue's dynamic component resolution ( , , or ), an attacker can inject a key into the island props to achieve server-side remote code execution in the Nitro process. Vue's runtime template compiler compiles and executes the attacker-controlled in the server proces

    github.com

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Maintainer security tabsNov 2, 2026