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CVE-2026-33768 (GCVE-0-2026-33768)

Vulnerability from cvelistv5 – Published: 2026-03-24 18:40 – Updated: 2026-03-24 18:53
VLAI
Title
Astro: Unauthenticated Path Override via `x-astro-path` / `x_astro_path`
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 18:53 UTC
CWE
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
withastro astro Affected: < 10.0.2
guessed Create a notification for this product.
Show details on NVD website
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