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OpenAdvisories
Medium · 6.5 CVE-2026-73424 EUVD-2026-60306GHSA-x27w-589x-frm2

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

Published Aug 17, 2026 · Updated Aug 18, 2026 · Assigned by GitHub_M

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

VendorProductAffectedFixed
withastro astro >= 10.0.3, < 11.0.3 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @astrojs/vercel >= 10.0.3, < 11.0.3 11.0.3 GHSA-x27w-589x-frm2

References