The general, who is thought to have served in Northern Ireland, said many members of the armed forces opposed Corbyn's views on defence. Hypothesising as to what would happen if Corbyn became PM, he said: "There would be mass resignations at all levels and you would face the very real prospect of an event that would effectively be a mutiny."
While the MoD told PRWeek it does not comment on unattributed quotes, a source told PRWeek that as there are well over 100 current generals who served in Northern Ireland, an attempt to identify the individual behind the comments would be "likely to be a fruitless task".
Some commentators have suggested that David Cameron should attempt to find the general in question and see to him being removed from his post.
However, it is understood that Number 10 has not taken any action thus far, and the Downing Street press office declined to comment.
The story capped the end to a difficult first week in his post for Corbyn. Despite new hires in his comms and policy teams, PRs and public affairs professional agree the left-winger still has work to do to get his comms strategy up to scratch.
Separately, PRWeek's features editor wrote that Corbyn had become "a walking talking billboard for the PR industry".