Security Vulnerability - Umbraco Forms (Current installed version of Umbraco Forms: 11.1.2)

I am getting a reported HIGH PRIORITY security vulnerability which identifies the g-recaptcha-response field on a form as the culprit.

Java Object Deserialization Instance VULNERABILITY CRITICAL PLUGIN ID 9878

I 'feel' this a false positive because it appears to be simply used by google's recaptcha service so not stored or dealt with by the website but can anyone expand, help with a better response.

Looking at the source the addition of the recaptcha field adds the following to my Umbraco Form

The script seems to place the token value received by recaptcha into the field - but where is that eventually processed, is that processed by Google recaptcha service directly on submission?

 <input type="hidden" id="XXXXXXXXXX" name="g-recaptcha-response" />




<script type="application/javascript">
            (function (window, document) {
                var hiddenField = document.getElementById('XXXXXXXXXX');
                var timerFunction = function () {
                    window.grecaptcha.execute('YYYYYYYYYY, { action: 'umbracoform_submit' }).then(function (token) {
                        // Enable the submit button now we have a token
                        hiddenField.form.querySelector('[type=submit]').removeAttribute('disabled');
                        hiddenField.value = token;
                    });
                    setTimeout(timerFunction, 60*1000);
                };

                document.addEventListener('DOMContentLoaded', function () {
                    // Disable the submit button for this form, until we actually have a key from Google reCAPTCHA
                    hiddenField.form.querySelector('[type=submit]').setAttribute('disabled','disabled');

                    window.grecaptcha.ready(function () {
                        timerFunction();
                    });
                });
            })(window, document);
        </script>