medium6.5
CVE-2026-73424
Astro: Unauthenticated path override in the @astrojs/vercel ISR function
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @astrojs/vercel | >= 10.0.3, < 11.0.3 | 11.0.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-x27w-589x-frm2
- https://github.com/withastro/astro/security/advisories/GHSA-mr6q-rp88-fx84
- https://github.com/withastro/astro/security/advisories/GHSA-x27w-589x-frm2
- https://github.com/withastro/astro/pull/16079
- https://github.com/withastro/astro/pull/17370
- https://github.com/withastro/astro/commit/3a43cf0f3690a8e33cb30109bc5165611cf38fcd
- https://github.com/withastro/astro/commit/aa266364fe9e105317b66e218fe04567307fb57f
- https://github.com/withastro/astro/releases/tag/@astrojs/vercel@11.0.3