The public service broadcaster was found to have committed a "significant breach" of industry standards by failing to disclose that the narrator of a programme about Gaza was the son of a Hamas official, as determined by UK media regulator Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a significant failing in relation to truthfulness".
The regulator has directed the corporation to air a evening statement about its findings.
"As this represents a major infringement of our rules, we are ordering the BBC to air a statement of our findings against it on the BBC's second channel at 21:00, with a timing to be finalised," the regulator stated.
'Risk to Damage Confidence'
The authority's statement said: "The inquiry we conducted determined that the film's failure to disclose that the voice's father occupied a role in the Hamas-administered authority was significantly deceptive.
"Consequently that the audience did not have critical information which may have been highly relevant to their assessment of the narrator and the content he provided.
"Credibility is at the center of the relationship between a broadcaster and its public, notably for a national broadcasting corporation such as the BBC.
"This oversight had the risk to damage the significantly high levels of trust that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from the BBC's streaming service in last February after the boy's personal associations were revealed, and in July an corporation's own inquiry found it violated the corporation's editorial guidelines on truthfulness.
A BBC spokesperson said: "The regulator's decision is in agreement with the results of the internal assessment, that there was a serious error in the documentary in relation to the corporation's content standards on accuracy, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the regulator's ruling in full. We will comply with the directive as soon as the timing and wording are confirmed."
