Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login.
{ "cpes": [ "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*", "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*" ], "severity": "High" }