A flaw was found in the Git-Client Jenkins plugin. The affected versions of the Jenkins Git client Plugin do not perform SSH host key verification when connecting to Git repositories via SSH, enabling Man-in-the-middle attacks.

Jenkins Git Client Plugin 2.8.4 and earlier and 3.0.0-rc did not properly restrict values passed as URL argument to an invocation of 'git ls-remote', resulting in OS command injection.

Jenkins Git Client Plugin 2.4.2 and earlier creates temporary file with insecure permissions resulting in information disclosure