Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/withastro/astro/commit/3a43cf0f3690a8e33cb30109bc5165611cf38f
- https://github.com/withastro/astro/pull/17370
- https://github.com/withastro/astro/releases/tag/@astrojs/[email protected]
- https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2
- https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2
FAQ
What is CVE-2026-73424?
CVE-2026-73424 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 publi...
How severe is CVE-2026-73424?
CVE-2026-73424 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73424?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.