CVE-2026-73424
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk13th percentile - higher than 13% of all known CVEs
Summary
Astro from 10.0.3 until 11.0.3 has a vulnerability in the Vercel adapter where the public /_isr function accepts x_astro_path based only on the x-vercel-isr header, allowing unauthenticated GET requests to render routes protected only by Vercel edge path rules or split edge middleware.
Risk Assessment
The risk includes unauthorized access to protected routes, potentially leading to exposure of content or functionality that should be restricted.
Recommendation
It is recommended to upgrade to version 11.0.3 or later, which includes the fix.
Original NVD description (English source)
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 x_astro_path for the public /_isr function based only on the x-vercel-isr header, allowing unauthenticated GET requests to render routes protected only by Vercel edge path rules or split edge middleware. This issue is fixed in 11.0.3.