IBM API Connect v2018.1 and 2018.4.1 is affected by an information disclosure vulnerability in the consumer API. Any registered user can obtain a list of all other users in all other orgs, including email id/names, etc. IBM X-Force ID: 155148.
API Connect V2018.1 through 2018.4.1.1 is impacted by access token leak. Authorization tokens in some URLs can result in the tokens being written to log files. IBM X-Force ID: 155626.
IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user’s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801.
IBM API Connect 2018.1 through 2018.3.7 could allow an unauthenticated attacker to cause a denial of service due to not setting limits on JSON payload size. IBM X-Force ID: 148802.