Is CVE-2026-73424 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73424?

CVE-2026-73424 has a CVSS v3 severity of MEDIUM (6.5).

Back

CVE-2026-73424

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.