CVE-2026-73424 Astro: Unauthenticated path override in the @astrojs/vercel ISR function

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...

CVE-2026-73424: Unintended Proxy or Intermediary

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...

GHSA-X27W-589X-FRM2 Astro: Unauthenticated path override in the @astrojs/vercel ISR function

Summary When ISR is enabled, the serverless entrypoint lets an unauthenticated request decide which route the origin renders. The internal isr function reads the xastropath query parameter and rewrites the request path to it without any authentication. Edge level access controls only ever see the...

Astro: Unauthenticated path override in the @astrojs/vercel ISR function

Summary When ISR is enabled, the serverless entrypoint lets an unauthenticated request decide which route the origin renders. The internal isr function reads the xastropath query parameter and rewrites the request path to it without any authentication. Edge level access controls only ever see the...