I [32M] found a porn video of a job candidate and don't know if I should report it to my boss

I am the hiring manager at an engineering firm. We got a lot of applicants this year and they all have pretty good track records and qualifications. The candidate in question is a MIT graduate, licensed, and previously worked for a great company. I am definitely considering her.

However, I came across a porn video featuring a woman I am certain is her. Her name isn't in the video or anything but I recognize the face. It has a generic title and I found it after shifting through a bunch of professional content. Real amateur quality and doesn't have many views. It also wasn't on any of the big name sites (e.g. pornhub). So I don't think anyone would find it easily.

I am torn because on one hand, I don't think what anyone does in their personal time should affect their career and it could be a mistake she regrets. On the other hand, my boss is somewhat uptight and let someone go before after he found a picture of them smoking weed on social media. I know that the company has a certain reputable to uphold.

I have thought about reaching out to her privately and telling her about it, so that maybe she can get it taken down. But I'm not sure if I would be crossing a line. Any advice?

Edit

I don't want to ruin her job prospects but if I hire her and this comes out later, I could be risking my position. I'm certain it is her because she has a distinctive face mole and it was the same haircut/color.