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CVE-2026-71318

Nuxt: Unauthorized Component Instantiation via Server Island Props

Published: Aug 5, 2026Updated: Aug 6, 2026 Sources: CVE List NVDCWE-20
4.8MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 88.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-20

Affected Products

nuxt
oss-projectaka nuxt.js, nuxt/framework
nuxtLibrary
OSS Libraries / web-framework

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-48hr-524c-v5w3
github.com
https://github.com/nuxt/nuxt/releases/tag/v3.21.10
github.com
https://github.com/nuxt/nuxt/releases/tag/v4.5.1
github.com

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