CVE-2025-66202
CVE-2025-66202 · Astro has an Authentication Bypass via Double URL Encoding, a bypass for CVE-2025-64765
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Astro is a web framework. Versions 5.15.7 and below have a double URL encoding bypass which allows any unauthenticated attacker to bypass path-based authentication checks in Astro middleware, granting unauthorized access to protected routes. While the original CVE-2025-64765 was fixed in v5.15.8, the fix is insufficient as it only decodes once. By using double-encoded URLs, attackers can still bypass authentication and access any route protected by middleware pathname checks. This issue is fixed in version 5.15.8.
CVSS 6.5 · Moyenne · EPSS 0,3% · Correctif disponible
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Pile logicielle: node