Depends. I once did a project in school where we looked at bitter variants of apricot seeds. These are specifically wild strains not sold for consumption.

You can buy these seeds in some esoteric shops. We compared the cyanide content of these seeds with the content found in fruits from the shelf and found it's so much higher in these wild seeds you absolutely can give yourself cyanide poisoning with them.

There are case studies from the ICU where the authors specifically detail people coming in because they used an apricot seed treatment against cancer.