An issue was discovered in Cloud Foundry Foundation routing-release versions prior to 0.142.0 and cf-release versions 203 to 231. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users to the routing API, aka an "Unauthenticated JWT signing algorithm in routing" issue.

Applications deployed to Cloud Foundry, versions v166 through v227, may be vulnerable to a remote disclosure of information, including, but not limited to environment variables and bound service details. For applications to be vulnerable, they must have been staged using automatic buildpack detection, passed through the Java Buildpack detection script, and allow the serving of static content from within the deployed artifact. The default Apache Tomcat configuration in the affected java buildpack versions for some basic web application archive (WAR) packaged applications are vulnerable to this issue.

Gorouter in Cloud Foundry cf-release v141 through v228 allows man-in-the-middle attackers to conduct cross-site scripting (XSS) attacks via vectors related to modified requests.