Roundcube 1.6-beta : view message forbidden

[AndreL]

Hi,

I installed Roundcube 1.6-beta on a centos 7 and php 8.1.7

Installer ends with no issue, message read and send ok.

But with I click on a message in the inbox list, the following is displayed :
"Forbidden You don't have permission to access / on this server."

Via a "link copy" on the message, everything is ok.

Any help is welcome.

[AndreL]

For your info :

md_security is the root cause of this.

Current working setup:

<IfModule mod_security2.c>
      SecRuleEngine Off
</IfModule>

probably need some more fine "SecRuleRemoveById"