EUVD-2025-35885

Hono vulnerable to Vary Header Injection leading to potential CORS Bypass...

Hono vulnerable to Vary Header Injection leading to potential CORS Bypass

Summary A flaw in the CORS middleware allowed request Vary headers to be reflected into the response, enabling attacker-controlled Vary values and potentially affecting cache behavior. Details The middleware previously copied the Vary header from the request when origin was not set to "". Since...