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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2026-73424

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

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

withastro astro

  • >= 10.0.3, < 11.0.3affected

References