Description
Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_island/* endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash (<Name>_<hashId>.json) was actually issued for those inputs by <NuxtIsland>. The hash is computed and embedded client-side but never validated server-side, so the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.
Published: 2026-06-12
Score: 2.3 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-g8wj-3cr3-6w7v Nuxt: `__nuxt_island` endpoint does not bind responses to request props, enabling shared-cache poisoning
History

Mon, 15 Jun 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Nuxt nuxt\/nitro-server
CPEs cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*
cpe:2.3:a:nuxt:nuxt\/nitro-server:*:*:*:*:*:node.js:*:*
Vendors & Products Nuxt nuxt\/nitro-server
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}


Fri, 12 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 12 Jun 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Nuxt
Nuxt nuxt
Vendors & Products Nuxt
Nuxt nuxt

Fri, 12 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_island/* endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash (<Name>_<hashId>.json) was actually issued for those inputs by <NuxtIsland>. The hash is computed and embedded client-side but never validated server-side, so the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.
Title Nuxt: `__nuxt_island` endpoint does not bind responses to request props, enabling shared-cache poisoning
Weaknesses CWE-349
CWE-444
CWE-79
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}


Subscriptions

Nuxt Nuxt Nuxt\/nitro-server
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-12T20:54:39.647Z

Reserved: 2026-05-13T18:37:30.990Z

Link: CVE-2026-46342

cve-icon Vulnrichment

Updated: 2026-06-12T14:38:07.488Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-12T14:16:31.590

Modified: 2026-06-15T18:09:23.353

Link: CVE-2026-46342

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T15:00:09Z

Weaknesses