CVE-2026-59731: CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions in withastro astro
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.
CVE-2026-59731: CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions in withastro astro
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.
CVSS v3.1
Score 8.2high
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-06T15:34:16.917Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4e81d8c9d9e3dbe3746a4a
Added to database: 07/08/2026, 16:59:04 UTC
Last updated: 07/08/2026, 16:59:04 UTC
Views: 1
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