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EUVD-2026-223771

fkie_cve-2025-27415

Nuxt is an open-source web development framework for Vue.js. Prior to 3.16.0, by sending a crafted HTTP request to a server behind an CDN, it is possible in some circumstances to poison the CDN cache and highly impacts the availability of a site. It is possible to craft a request, such as https://mysite.com/?/_payload.json which will be rendered as JSON. If the CDN in front of a Nuxt site ignores the query string when determining whether to cache a route, then this JSON response could be served to future visitors to the site. An attacker can perform this attack to a vulnerable site in order to make a site unavailable indefinitely. It is also possible in the case where the cache will be reset to make a small script to send a request each X seconds (=caching duration) so that the cache is permanently poisoned making the site completely unavailable. This vulnerability is fixed in 3.16.0.

GHSA-jvhm-gjrh-3h93 — Nuxt allows DOS via cache poisoning with payload rendering response

Affected: npm: nuxt

### Summary

By sending a crafted HTTP request to a server behind an CDN, it is possible in some circumstances to poison the CDN cache and highly impacts the availability of a site.

It is possible to craft a request, such as `https://mysite.com/?/_payload.json` which will be rendered as JSON. If the CDN in front of a Nuxt site ignores the query string when determining whether to cache a route, then this JSON response could be served to future visitors to the site.

### Impact

An attacker can perform this attack to a vulnerable site in order to make a site unavailable indefinitely. It is also possible in the case where the cache will be reset to make a small script to send a request each X seconds (=caching duration) so that the cache is permanently poisoned making the site completely unavailable.

## Conclusion :

This is similar to a vulnerability in Next.js that resulted in CVE-2024-46982 (and see [this article](https://zhero-web-sec.github.io/research-and-things/nextjs-cache-and-chains-the-stale-elixir), in particular the "Internal URL parameter and pageProps" part, the latter being very similar to the one concerning us here.)