CVE-2026-33768

Astro is a web framework. Prior to version 10.0.2, the @astrojs/vercel serverless entrypoint reads the x-astro-path header and x_astro_path 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 entirely. The override preserves the original HTTP method and body, so this isn't limited to GET. POST, PUT, DELETE all land on the rewritten path. A Firewall rule blocking /admin/* does nothing when the request comes in as POST /api/health?x_astro_path=/admin/delete-user. This issue has been patched in version 10.0.2.
Configurations

Configuration 1 (hide)

cpe:2.3:a:astro:\@astrojs\/vercel:*:*:*:*:*:*:*:*

History

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Information

Published : 2026-03-24 19:16

Updated : 2026-03-26 13:37


NVD link : CVE-2026-33768

Mitre link : CVE-2026-33768

CVE.ORG link : CVE-2026-33768


JSON object : View

Products Affected

astro

  • \@astrojs\/vercel
CWE
CWE-441

Unintended Proxy or Intermediary ('Confused Deputy')

CWE-862

Missing Authorization