Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/withastro/astro/commit/05763a0884aabb1da78a2749d5bb9d41ae6205
- https://github.com/withastro/astro/pull/17701
- https://github.com/withastro/astro/releases/tag/[email protected]
- https://github.com/withastro/astro/security/advisories/GHSA-376h-93r7-7g6f
FAQ
What is CVE-2026-84376?
CVE-2026-84376 is a documented vulnerability. 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...
How severe is CVE-2026-84376?
CVSS scoring is not yet available for CVE-2026-84376. Check NVD for updates.
Is there a patch for CVE-2026-84376?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.