Avoid overly permissive CORS

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Metadata

ID: java-security/permissive-cors

Language: Java

Severity: Warning

Category: Security

Description

Do not set overly permissive CORS requests. Restrict the host allowed to communicate with to prevent potential malicious requests in your application.

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Non-Compliant Code Examples

class NotCompliant {
    @GET
    @Path("/some/path")
    public Response getRoute() {
        response.addHeader("Access-Control-Allow-Origin: *");
    }
}

class NotCompliant {
    @GET
    @Path("/some/path")
    public Response getRoute() {
        response.addHeader("Access-Control-Allow-Origin", "*");
    }
}

Compliant Code Examples

class NotCompliant {
    @GET
    @Path("/some/path")
    public Response getRoute() {
        response.addHeader("Access-Control-Allow-Origin", "https://developer.mozilla.org");
    }
}

class NotCompliant {
    @GET
    @Path("/some/path")
    public Response getRoute() {
        response.addHeader("Access-Control-Allow-Origin: https://developer.mozilla.org");
    }
}