Description
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.
INFO
Published Date :
2025-12-08T23:41:21.976Z
Last Modified :
2025-12-09T16:04:07.923Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2025-66202 vulnerability.
| Vendors | Products |
|---|---|
| Astro |
|
| Withastro |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66202.
