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OpenAdvisories
High · 8.2 CVE-2026-59731 EUVD-2026-42341GHSA-vj59-8hwv-xxmv

Astro 6.4.7 Authorization Bypass via Decode Iteration Limit and Rewrite Path Canonicalization Mismatch

Published Jul 8, 2026 · Updated Jul 9, 2026 · Assigned by GitHub_M

Description

Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI() operation and can resolve the request to a protected route. This issue is fixed in version 6.4.8.

Affected products

VendorProductAffectedFixed
withastro astro >= 6.4.7, < 6.4.8 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm astro >= 6.4.7, < 6.4.8 6.4.8 GHSA-vj59-8hwv-xxmv

References