CVE-2026-46342
Last modified
CVE-2026-46342 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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>. EPSS estimates a 0.09% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nuxt | Nuxt | >= 3.1.0, < 3.21.6 |
| Nuxt | Nuxt | >= 4.0.0, < 4.4.5 |
| Nuxt | Nuxt\/Nitro-Server | >= 3.20.0, < 3.21.6 |
| Nuxt | Nuxt\/Nitro-Server | >= 4.2.0, < 4.4.6 |
References
- https://github.com/nuxt/nuxt/pull/35077Issue Tracking
- https://github.com/nuxt/nuxt/security/advisories/GHSA-g8wj-3cr3-6w7vMitigation, Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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