Version: 2026.2

Multi-Application Setup

Sessions

When running multiple applications on the same domain, session cookie collisions can prevent you from logging in to both systems at the same time.

For example, if you run a web shop on http://example.org and Pimcore on http://pim.example.org, you may end up with two cookies named PHPSESSID (if session.name in php.ini is the same for both):

Name	Value	Domain	Path
PHPSESSID	5a9b08750387d9e11c738a2947d93e38	.example.org	/
PHPSESSID	irqnjh5p96gp2i8iu743ulm32p	pim.example.org	/

The first cookie comes from the web shop, the second from Pimcore. Trying to log in at http://example.org/pimcore-studio will result in a 403 Forbidden error because the browser sends both cookies, and the web shop's cookie for .example.org takes precedence.

Prevent this by setting a unique session name in your config.yaml:

framework:
    session:
        name: "PIMCORE_SESSION_ID"

This ensures the session cookies do not conflict, and you can log in to both applications at the same time.

Sessions​

Sessions