Joomla Security Patch Pre-Announcement

Joomla has issues a pre-announcement for the Joomla 3.4.5 release containing a security fix that will be published on Thursday 22nd October at approximately 14:00 UTC

The Joomla security team (JSST) has been informed of a critical security issue in the Joomla core.
Since this is a very important security fix, please be prepared to update your Joomla installations next Thursday.
Until the release is out, please understand that we cannot provide any further information.

Link: www.joomla.org