IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to access internal network resources and obtain sensitive information due to server-side request forgery. A protection that blocks requests to internal addresses can be bypassed, so the server could be made to contact internal services and return part of their responses.
IBM strongly recommends addressing the vulnerability now by upgrading to v12.1.1.3
Fix Central Link: https://www.ibm.com/support/pages/node/7290205