Session fixation in express-openid-connect

Overview

Versions 2.3.0 up to and including 2.5.1 do not regenerate the session id and session cookie when user logs in. This behavior opens up the application to various session fixation vulnerabilities.

Am I affected?

You are affected by this vulnerability if you are using express-openid-connect version 2.3.0 up to and including 2.5.1 and use a custom session store.

How to fix that?

Upgrade to version >= 2.5.2.

Will this update impact my users?

The fix provided in patch will not affect your users.