EUVD-2026-60306

Astro is a web framework for content-driven websites. From 10.0.3 until 11.0.3, the Astro Vercel adapter in packages/integrations/vercel/src/serverless/entrypoint.ts accepts xastropath for the public /isr function based only on the x-vercel-isr header, allowing unauthenticated GET requests to...

Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Summary The @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirel...

GHSA-MR6Q-RP88-FX84 Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`

Summary The @astrojs/vercel serverless entrypoint reads the x-astro-path header and xastropath query parameter to rewrite the internal request path, with no authentication whatsoever. On deployments without Edge Middleware, this lets anyone bypass Vercel's platform-level path restrictions entirel...

Unintended Proxy or Intermediary ('Confused Deputy')

Overview @astrojs/vercel is a Deploy your site to Vercel Affected versions of this package are vulnerable to Unintended Proxy or Intermediary 'Confused Deputy' via the x-astro-path header or xastropath query parameter, which allows overriding internal request paths without authentication. An...