Can congestive heart failure be from a bacterial infection of vital organs?

Not usually.: Except in the case of bacterial infection of the heart valves (endocarditis) or septic shock , this would be very unusual.

See below: Bacterial infections do not cause congestive heart failure except for endocarditis with severe valve dysfunction or pericarditis with cardiac tamponade. In patients with pre-existing CHF a bacterial infection can precipitate a decompensation and worsening of the chf.

Agree with: Dr ein bit would add that advanced sepsis can can myocardial suppression and resultant chf.