🚨 CVE-2026-84376
Astro is a web framework for content-driven websites. Prior to 7.2.4, Astro stripped a configured non-root base path from request pathnames using a string-prefix check without verifying a path-segment boundary. With base "/app", a request to "/appX/admin" resolved internally to the protected "/admin" route while middleware observed "/appX/admin" in context.url.pathname. In applications that authorize base-prefixed routes by inspecting context.url.pathname, an unauthenticated remote attacker could bypass pathname-based middleware authorization and reach protected routes. This issue is fixed in version 7.2.4.
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GitHub
Respect path-segment boundaries when stripping the configured base (#… · withastro/astro@05763a0
…17701)
* Respect path-segment boundaries when stripping the configured base
* Use stripRequestBase in matchRequest and cover the app.match path
September 2, 2026 13
