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CVE-2026-84376

Astro: Authorization bypass from missing path-segment boundary check when stripping the configured base PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
withastro / astroaffected < 7.2.4

CWE

CWE-187

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.