If by 'obligated' you mean it's demanded by those who fear being the targets of those actions, yes. Or if you mean exercising restraint may be practically necessary to comply with certain values those actions thwart, yes. Or if you mean doing those things is likely to result in legal penalties, that's often the case.

But if you mean it's some simple fact that we're morally obligated to restrain ourselves from doing certain things, no. Or at least I don't see how that could even possibly be the case, and I already have a theory that explains why people might mistakenly think such a thing is the case (they mistake their own values for facts woven into the universe, so hypothetical imperatives look like categorical imperatives to them).

The 'commission' vs. 'omission' thing is often a matter of wording. Rape can be viewed as omitting to get proper permission, particularly when we're talking about drugging, etc.