CVE-2026-73424
Astro: Unauthenticated path override in the @astrojs/vercel ISR function
MEDIUM 6.5EPSS 0.4%
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
- withastro · astro
- CVSS v3.1 GITHUB
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - EPSS
- 0.38% chance of exploitation in the next 30 days, 31st percentile
- Published
- 2026-08-17
- Updated
- 2026-08-18