Administrators could persist access to Jenkins using crafted 'Remember me' cookie

Users with the Overall/RunScripts permission typically administrators were able to use the Jenkins script console to craft a 'Remember me' cookie that would never expire. This allowed attackers access to a Jenkins instance while the corresponding user in the configured security realm exists, for...

Deleting a user in an external security realm did not invalidate their session or 'Remember me' cookie

When using an external security realm such as LDAP or Active Directory, deleting a user from the security realm does not result in the user losing access to Jenkins. While deleting the user record from Jenkins did invalidate the 'Remember me' cookie, there was no way to invalidate active sessions...