Nuxt up to 3.21.9/4.5.0 Dynamic Component Resolution resolveDynamicComponent as input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k3.05

Summaryinfo

A vulnerability identified as critical has been detected in Nuxt up to 3.21.9/4.5.0. This issue affects the function resolveDynamicComponent of the component Dynamic Component Resolution. The manipulation of the argument as leads to input validation. This vulnerability is listed as CVE-2026-71318. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Nuxt up to 3.21.9/4.5.0. It has been rated as critical. This issue affects the function resolveDynamicComponent of the component Dynamic Component Resolution. The manipulation of the argument as with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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 <component :is>, resolveDynamicComponent, or h(). This issue is fixed in 3.21.10 and 4.5.1.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-71318 since 08/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.21.10 or 4.5.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Nuxt 3.21.10/4.5.1

Timelineinfo

08/05/2026 Advisory disclosed
08/05/2026 +0 days CVE reserved
08/05/2026 +0 days VulDB entry created
08/06/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-71318 (🔒)
GCVE (CVE): GCVE-0-2026-71318
GCVE (VulDB): GCVE-100-386423

Entryinfo

Created: 08/06/2026 00:01
Changes: 08/06/2026 00:01 (56)
Complete: 🔍
Cache ID: 216::103

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