"We expect all the commonwealth leaders to attend the summit meeting," said Vladimir Rushailo, a former Russian interior minister.
Some members of the 11-nation confederation have recently shunned CIS initiatives and meetings, criticizing the CIS as ineffective, and calling it a vehicle to promote Russia's interests.
The Western-leaning presidents of Ukraine and Georgia have been the most vocal critics of the CIS. Moldova's leader has also questioned the organization's future, and last year Turkmenistan ceased to be a full member.
Georgia, locked in an ongoing diplomatic dispute with Russia since September and saddled with travel and mail bans imposed by Russia, moved to withdraw from the CIS last week, when a parliamentary faction proposed a resolution on the issue.
Earlier, the Georgian foreign minister said President Mikheil Saakashvili plans to attend the upcoming CIS summit, and will seek a separate meeting with the Russian leader as an opportunity to negotiate an end the bilateral crisis.
Asked if CIS leaders would discuss the row between Russia and Georgia, Vladimir Rushailo said it is a bilateral issue, and is "not on the summit agenda."
Rushailo said the summit will have a packed agenda, including economic integration, spending on CIS organizations in 2007, as well as reform of the alliance, with an emphasis on economic issues in line proposals from the president of Kazakhstan.
The Russian diplomat also said the CIS prime ministers will meet on November 24, and the foreign ministers on November 27.
