IBM API Connect 2018.1 and 2018.4.1.2 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 155078.

IBM API Connect's Developer Portal 2018.1 and 2018.4.1.3 is impacted by a privilege escalation vulnerability when integrated with an OpenID Connect (OIDC) user registry. IBM X-Force ID: 158544.

Some URIs in IBM API Connect 2018.1 and 2018.4.1.3 disclose system specification information like the machine id, system uuid, filesystem paths, network interface names along with their mac addresses. An attacker can use this information in targeted attacks. IBM X-Force ID: 156542.

IBM API Connect 2018.1 and 2018.4.1.2 apis can be leveraged by unauthenticated users to discover login ids of registered users. IBM X-Force ID: 156544.

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.