A logic vulnerability, dubbed ReBreakCaptcha, lets you easily bypass Googles ReCaptcha v2 anywhere on the web. The vulnerability works in three stages: Audio Challenge, Image Challenge, Text Challenge, Recognition and Verification. As of the time of posting, it is confirmed that this vulnerability still works. Update: Update/reeeee-break-captcha should overcome this situation at lower levels of success at lower level of success, though a lower success rate is possible.”]
Source: https://east-ee.com/2017/02/28/rebreakcaptcha-breaking-googles-recaptcha-v2-using-google/