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astro@5.16.2 vulnerabilities

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

  • latest version

    5.16.5

  • latest non vulnerable version

    6.0.0-alpha.1

  • first published

    4 years ago

  • latest version published

    4 days ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the astro package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • M
    Use of Non-Canonical URL Paths for Authorization Decisions

    astro is an Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

    Affected versions of this package are vulnerable to Use of Non-Canonical URL Paths for Authorization Decisions due to improper URL decoding logic. The pathname validation used for protecting routes decodes the request path only once, allowing double-encoded sequences to bypass path-based authentication checks. An attacker can exploit this by submitting double-encoded URLs to access protected routes such as /admin or /api/internal, enabling unauthorized access to restricted functionality.

    Note: There has been an attempt to fix this vulnerability in version 5.15.8 following CVE-2025-64765, but the fix is insufficient.

    How to fix Use of Non-Canonical URL Paths for Authorization Decisions?

    Upgrade astro to version 5.16.3 or higher.

    <5.16.3
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