CVE-2026-71320Network attack vectorHinoki check available

Remote code execution via island template injection

Published Aug 5, 2026 · Updated Aug 5, 2026

Code injection in Nuxt 3.4.0 through 3.21.9 and 4.0.0 through 4.5.0 allows remote attackers to execute code in Nitro. The /__nuxt_island/ handler accepts nested template keys in decoded props and passes them through dynamic component resolution, where Vue's runtime compiler compiles and executes the attacker-controlled template in the Nitro process. Exploitation requires vue.runtimeCompiler to be enabled, a nonstatic deployment, and a server island whose props reach a dynamic-component path explicitly or through attribute fallthrough.

CVSS severity8.1
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in Nuxt 3.4.0 through 3.21.9 and 4.0.0 through 4.5.0 allows remote attackers to execute code in Nitro. The /__nuxt_island/ handler accepts nested template keys in decoded props and passes them through dynamic component resolution, where Vue's runtime compiler compiles and executes the attacker-controlled template in the Nitro process. Exploitation requires vue.runtimeCompiler to be enabled, a nonstatic deployment, and a server island whose props reach a dynamic-component path explicitly or through attribute fallthrough.

The record

CVE
CVE-2026-71320
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
Nuxt
Product
Nuxt
Classifications
CWE-74, CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.4.0, < 3.21.10
  2. Affected versionversion=>= 4.0.0, < 4.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nuxt · Nuxtversion=>= 3.4.0, < 3.21.10; version=>= 4.0.0, < 4.5.1

Published CVSS scores

8.1GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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