CVE-2026-46342
CVE-2026-46342 · Nuxt: `__nuxt_island` endpoint does not bind responses to request props, enabling shared-cache poisoning
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 2.3 · Low · EPSS 0.1% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
nuxt
- Versions
- >= 3.1.0, < 3.21.6: Affected
- >= 4.0.0-alpha.1, < 4.4.6: Affected
No fix published
nuxt npm
- Affected ranges
- SEMVER: ≥ 3.1.0, < 3.21.6
Update to 3.21.6
nuxt npm
- Affected ranges
- SEMVER: ≥ 4.0.0-alpha.1, < 4.4.6
Update to 4.4.6
@nuxt/nitro-server npm
- Affected ranges
- SEMVER: ≥ 3.20.0, < 3.21.6
Update to 3.21.6
@nuxt/nitro-server npm
- Affected ranges
- SEMVER: ≥ 4.2.0, < 4.4.6
Update to 4.4.6