p PatchFirst

CVE-2026-27118

CVE-2026-27118 · Cache poisoning in @sveltejs/adapter-vercel

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Versions of @sveltejs/adapter-vercel prior to 6.3.2 are vulnerable to cache poisoning. An internal query parameter intended for Incremental Static Regeneration (ISR) is accessible on all routes, allowing an attacker to cause sensitive user-specific responses to be cached and served to other users. Successful exploitation requires a victim to visit an attacker-controlled link while authenticated. Existing deployments are protected by Vercel's WAF, but users should upgrade as soon as possible. This vulnerability is fixed in 6.3.2.

CVSS 5.3 · Media · EPSS 0,3% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • kit

    Versiones
    • < 6.3.2: Afectada

    Sin corrección publicada

  • @sveltejs/adapter-vercel npm

    Intervalos de versiones afectados
    • SEMVER: < 6.3.2

    Actualiza a 6.3.2

Fuentes originales

Comprueba tu servidor →